diff --git a/src/lib/es2015.core.d.ts b/src/lib/es2015.core.d.ts
index 9e4399071fa..9c84fc259c7 100644
--- a/src/lib/es2015.core.d.ts
+++ b/src/lib/es2015.core.d.ts
@@ -10,8 +10,8 @@ interface Array<T> {
      * @param thisArg If provided, it will be used as the this value for each invocation of
      * predicate. If it is not provided, undefined is used instead.
      */
-    find(predicate: (this: undefined, value: T, index: number, obj: Array<T>) => boolean): T | undefined;
-    find(predicate: (this: undefined, value: T, index: number, obj: Array<T>) => boolean, thisArg: undefined): T | undefined;
+    find(predicate: (this: void, value: T, index: number, obj: Array<T>) => boolean): T | undefined;
+    find(predicate: (this: void, value: T, index: number, obj: Array<T>) => boolean, thisArg: undefined): T | undefined;
     find<Z>(predicate: (this: Z, value: T, index: number, obj: Array<T>) => boolean, thisArg: Z): T | undefined;
 
     /**
@@ -23,8 +23,8 @@ interface Array<T> {
      * @param thisArg If provided, it will be used as the this value for each invocation of
      * predicate. If it is not provided, undefined is used instead.
      */
-    findIndex(predicate: (this: undefined, value: T, index: number, obj: Array<T>) => boolean): number;
-    findIndex(predicate: (this: undefined, value: T, index: number, obj: Array<T>) => boolean, thisArg: undefined): number;
+    findIndex(predicate: (this: void, value: T, index: number, obj: Array<T>) => boolean): number;
+    findIndex(predicate: (this: void, value: T, index: number, obj: Array<T>) => boolean, thisArg: undefined): number;
     findIndex<Z>(predicate: (this: Z, value: T, index: number, obj: Array<T>) => boolean, thisArg: Z): number;
 
     /**
@@ -56,8 +56,8 @@ interface ArrayConstructor {
      * @param mapfn A mapping function to call on every element of the array.
      * @param thisArg Value of 'this' used to invoke the mapfn.
      */
-    from<T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U): Array<U>;
-    from<T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): Array<U>;
+    from<T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U): Array<U>;
+    from<T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): Array<U>;
     from<Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): Array<U>;
 
 
@@ -363,8 +363,8 @@ interface ReadonlyArray<T> {
      * @param thisArg If provided, it will be used as the this value for each invocation of
      * predicate. If it is not provided, undefined is used instead.
      */
-    find(predicate: (this: undefined, value: T, index: number, obj: ReadonlyArray<T>) => boolean): T | undefined;
-    find(predicate: (this: undefined, value: T, index: number, obj: ReadonlyArray<T>) => boolean, thisArg: undefined): T | undefined;
+    find(predicate: (this: void, value: T, index: number, obj: ReadonlyArray<T>) => boolean): T | undefined;
+    find(predicate: (this: void, value: T, index: number, obj: ReadonlyArray<T>) => boolean, thisArg: undefined): T | undefined;
     find<Z>(predicate: (this: Z, value: T, index: number, obj: ReadonlyArray<T>) => boolean, thisArg: Z): T | undefined;
 
     /**
@@ -376,8 +376,8 @@ interface ReadonlyArray<T> {
      * @param thisArg If provided, it will be used as the this value for each invocation of
      * predicate. If it is not provided, undefined is used instead.
      */
-    findIndex(predicate: (this: undefined, value: T, index: number, obj: Array<T>) => boolean): number;
-    findIndex(predicate: (this: undefined, value: T, index: number, obj: Array<T>) => boolean, thisArg: undefined): number;
+    findIndex(predicate: (this: void, value: T, index: number, obj: Array<T>) => boolean): number;
+    findIndex(predicate: (this: void, value: T, index: number, obj: Array<T>) => boolean, thisArg: undefined): number;
     findIndex<Z>(predicate: (this: Z, value: T, index: number, obj: Array<T>) => boolean, thisArg: Z): number;
 }
 
diff --git a/src/lib/es2015.iterable.d.ts b/src/lib/es2015.iterable.d.ts
index 2d382b67adc..d242d14b663 100644
--- a/src/lib/es2015.iterable.d.ts
+++ b/src/lib/es2015.iterable.d.ts
@@ -54,8 +54,8 @@ interface ArrayConstructor {
      * @param mapfn A mapping function to call on every element of the array.
      * @param thisArg Value of 'this' used to invoke the mapfn.
      */
-    from<T, U>(iterable: Iterable<T>, mapfn: (this: undefined, v: T, k: number) => U): Array<U>;
-    from<T, U>(iterable: Iterable<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): Array<U>;
+    from<T, U>(iterable: Iterable<T>, mapfn: (this: void, v: T, k: number) => U): Array<U>;
+    from<T, U>(iterable: Iterable<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): Array<U>;
     from<Z, T, U>(iterable: Iterable<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): Array<U>;
 
     /**
@@ -182,8 +182,8 @@ interface Int8ArrayConstructor {
      * @param mapfn A mapping function to call on every element of the array.
      * @param thisArg Value of 'this' used to invoke the mapfn.
      */
-    from(arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int8Array;
-    from(arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int8Array;
+    from(arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int8Array;
+    from(arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int8Array;
     from<Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array;
 
     from(arrayLike: Iterable<number>): Int8Array;
@@ -218,8 +218,8 @@ interface Uint8ArrayConstructor {
      * @param mapfn A mapping function to call on every element of the array.
      * @param thisArg Value of 'this' used to invoke the mapfn.
      */
-    from(arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8Array;
-    from(arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8Array;
+    from(arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint8Array;
+    from(arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8Array;
     from<Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array;
 
     from(arrayLike: Iterable<number>): Uint8Array;
@@ -257,8 +257,8 @@ interface Uint8ClampedArrayConstructor {
      * @param mapfn A mapping function to call on every element of the array.
      * @param thisArg Value of 'this' used to invoke the mapfn.
      */
-    from(arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8ClampedArray;
-    from(arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray;
+    from(arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint8ClampedArray;
+    from(arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray;
     from<Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray;
 
     from(arrayLike: Iterable<number>): Uint8ClampedArray;
@@ -295,8 +295,8 @@ interface Int16ArrayConstructor {
      * @param mapfn A mapping function to call on every element of the array.
      * @param thisArg Value of 'this' used to invoke the mapfn.
      */
-    from(arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int16Array;
-    from(arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int16Array;
+    from(arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int16Array;
+    from(arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int16Array;
     from<Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array;
 
     from(arrayLike: Iterable<number>): Int16Array;
@@ -331,8 +331,8 @@ interface Uint16ArrayConstructor {
      * @param mapfn A mapping function to call on every element of the array.
      * @param thisArg Value of 'this' used to invoke the mapfn.
      */
-    from(arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint16Array;
-    from(arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint16Array;
+    from(arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint16Array;
+    from(arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint16Array;
     from<Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array;
 
     from(arrayLike: Iterable<number>): Uint16Array;
@@ -367,8 +367,8 @@ interface Int32ArrayConstructor {
      * @param mapfn A mapping function to call on every element of the array.
      * @param thisArg Value of 'this' used to invoke the mapfn.
      */
-    from(arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int32Array;
-    from(arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int32Array;
+    from(arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int32Array;
+    from(arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int32Array;
     from<Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array;
 
     from(arrayLike: Iterable<number>): Int32Array;
@@ -403,8 +403,8 @@ interface Uint32ArrayConstructor {
      * @param mapfn A mapping function to call on every element of the array.
      * @param thisArg Value of 'this' used to invoke the mapfn.
      */
-    from(arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint32Array;
-    from(arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint32Array;
+    from(arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint32Array;
+    from(arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint32Array;
     from<Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array;
 
     from(arrayLike: Iterable<number>): Uint32Array;
@@ -439,8 +439,8 @@ interface Float32ArrayConstructor {
      * @param mapfn A mapping function to call on every element of the array.
      * @param thisArg Value of 'this' used to invoke the mapfn.
      */
-    from(arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Float32Array;
-    from(arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float32Array;
+    from(arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Float32Array;
+    from(arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float32Array;
     from<Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array;
 
     from(arrayLike: Iterable<number>): Float32Array;
@@ -475,8 +475,8 @@ interface Float64ArrayConstructor {
      * @param mapfn A mapping function to call on every element of the array.
      * @param thisArg Value of 'this' used to invoke the mapfn.
      */
-    from(arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Float64Array;
-    from(arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float64Array;
+    from(arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Float64Array;
+    from(arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float64Array;
     from<Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array;
 
     from(arrayLike: Iterable<number>): Float64Array;
diff --git a/src/lib/es5.d.ts b/src/lib/es5.d.ts
index b92d335457a..69460f40c16 100644
--- a/src/lib/es5.d.ts
+++ b/src/lib/es5.d.ts
@@ -1017,48 +1017,48 @@ interface ReadonlyArray<T> {
       * @param callbackfn A function that accepts up to three arguments. The every method calls the callbackfn function for each element in array1 until the callbackfn returns false, or until the end of the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
       */
-    every(callbackfn: (this: undefined, value: T, index: number, array: ReadonlyArray<T>) => boolean): boolean;
-    every(callbackfn: (this: undefined, value: T, index: number, array: ReadonlyArray<T>) => boolean, thisArg: undefined): boolean;
+    every(callbackfn: (this: void, value: T, index: number, array: ReadonlyArray<T>) => boolean): boolean;
+    every(callbackfn: (this: void, value: T, index: number, array: ReadonlyArray<T>) => boolean, thisArg: undefined): boolean;
     every<Z>(callbackfn: (this: Z, value: T, index: number, array: ReadonlyArray<T>) => boolean, thisArg: Z): boolean;
     /**
       * Determines whether the specified callback function returns true for any element of an array.
       * @param callbackfn A function that accepts up to three arguments. The some method calls the callbackfn function for each element in array1 until the callbackfn returns true, or until the end of the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
       */
-    some(callbackfn: (this: undefined, value: T, index: number, array: ReadonlyArray<T>) => boolean): boolean;
-    some(callbackfn: (this: undefined, value: T, index: number, array: ReadonlyArray<T>) => boolean, thisArg: undefined): boolean;
+    some(callbackfn: (this: void, value: T, index: number, array: ReadonlyArray<T>) => boolean): boolean;
+    some(callbackfn: (this: void, value: T, index: number, array: ReadonlyArray<T>) => boolean, thisArg: undefined): boolean;
     some<Z>(callbackfn: (this: Z, value: T, index: number, array: ReadonlyArray<T>) => boolean, thisArg: Z): boolean;
     /**
       * Performs the specified action for each element in an array.
       * @param callbackfn  A function that accepts up to three arguments. forEach calls the callbackfn function one time for each element in the array.
       * @param thisArg  An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
       */
-    forEach(callbackfn: (this: undefined, value: T, index: number, array: ReadonlyArray<T>) => void): void;
-    forEach(callbackfn: (this: undefined, value: T, index: number, array: ReadonlyArray<T>) => void, thisArg: undefined): void;
+    forEach(callbackfn: (this: void, value: T, index: number, array: ReadonlyArray<T>) => void): void;
+    forEach(callbackfn: (this: void, value: T, index: number, array: ReadonlyArray<T>) => void, thisArg: undefined): void;
     forEach<Z>(callbackfn: (this: Z, value: T, index: number, array: ReadonlyArray<T>) => void, thisArg: Z): void;
     /**
       * Calls a defined callback function on each element of an array, and returns an array that contains the results.
       * @param callbackfn A function that accepts up to three arguments. The map method calls the callbackfn function one time for each element in the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
       */
-    map<U>(callbackfn: (this: undefined, value: T, index: number, array: ReadonlyArray<T>) => U): U[];
-    map<U>(callbackfn: (this: undefined, value: T, index: number, array: ReadonlyArray<T>) => U, thisArg: undefined): U[];
+    map<U>(callbackfn: (this: void, value: T, index: number, array: ReadonlyArray<T>) => U): U[];
+    map<U>(callbackfn: (this: void, value: T, index: number, array: ReadonlyArray<T>) => U, thisArg: undefined): U[];
     map<Z, U>(callbackfn: (this: Z, value: T, index: number, array: ReadonlyArray<T>) => U, thisArg: Z): U[];
     /**
      * Returns the elements of an array that meet the condition specified in a callback function.
      * @param callbackfn A function that accepts up to three arguments. The filter method calls the callbackfn function one time for each element in the array.
      * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
      */
-    filter<S extends T>(callbackfn: (this: undefined, value: T, index: number, array: ReadonlyArray<T>) => value is S): S[];
-    filter<S extends T>(callbackfn: (this: undefined, value: T, index: number, array: ReadonlyArray<T>) => value is S, thisArg: undefined): S[];
+    filter<S extends T>(callbackfn: (this: void, value: T, index: number, array: ReadonlyArray<T>) => value is S): S[];
+    filter<S extends T>(callbackfn: (this: void, value: T, index: number, array: ReadonlyArray<T>) => value is S, thisArg: undefined): S[];
     filter<Z, S extends T>(callbackfn: (this: Z, value: T, index: number, array: ReadonlyArray<T>) => value is S, thisArg: Z): S[];
     /**
       * Returns the elements of an array that meet the condition specified in a callback function.
       * @param callbackfn A function that accepts up to three arguments. The filter method calls the callbackfn function one time for each element in the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
       */
-    filter(callbackfn: (this: undefined, value: T, index: number, array: ReadonlyArray<T>) => any): T[];
-    filter(callbackfn: (this: undefined, value: T, index: number, array: ReadonlyArray<T>) => any, thisArg: undefined): T[];
+    filter(callbackfn: (this: void, value: T, index: number, array: ReadonlyArray<T>) => any): T[];
+    filter(callbackfn: (this: void, value: T, index: number, array: ReadonlyArray<T>) => any, thisArg: undefined): T[];
     filter<Z>(callbackfn: (this: Z, value: T, index: number, array: ReadonlyArray<T>) => any, thisArg: Z): T[];
     /**
       * Calls the specified callback function for all the elements in an array. The return value of the callback function is the accumulated result, and is provided as an argument in the next call to the callback function.
@@ -1176,72 +1176,72 @@ interface Array<T> {
       * @param callbackfn A function that accepts up to three arguments. The every method calls the callbackfn function for each element in array1 until the callbackfn returns false, or until the end of the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
       */
-    every(callbackfn: (this: undefined, value: T, index: number, array: T[]) => boolean): boolean;
-    every(callbackfn: (this: undefined, value: T, index: number, array: T[]) => boolean, thisArg: undefined): boolean;
+    every(callbackfn: (this: void, value: T, index: number, array: T[]) => boolean): boolean;
+    every(callbackfn: (this: void, value: T, index: number, array: T[]) => boolean, thisArg: undefined): boolean;
     every<Z>(callbackfn: (this: Z, value: T, index: number, array: T[]) => boolean, thisArg: Z): boolean;
     /**
       * Determines whether the specified callback function returns true for any element of an array.
       * @param callbackfn A function that accepts up to three arguments. The some method calls the callbackfn function for each element in array1 until the callbackfn returns true, or until the end of the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
       */
-    some(callbackfn: (this: undefined, value: T, index: number, array: T[]) => boolean): boolean;
-    some(callbackfn: (this: undefined, value: T, index: number, array: T[]) => boolean, thisArg: undefined): boolean;
+    some(callbackfn: (this: void, value: T, index: number, array: T[]) => boolean): boolean;
+    some(callbackfn: (this: void, value: T, index: number, array: T[]) => boolean, thisArg: undefined): boolean;
     some<Z>(callbackfn: (this: Z, value: T, index: number, array: T[]) => boolean, thisArg: Z): boolean;
     /**
       * Performs the specified action for each element in an array.
       * @param callbackfn  A function that accepts up to three arguments. forEach calls the callbackfn function one time for each element in the array.
       * @param thisArg  An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
       */
-    forEach(callbackfn: (this: undefined, value: T, index: number, array: T[]) => void): void;
-    forEach(callbackfn: (this: undefined, value: T, index: number, array: T[]) => void, thisArg: undefined): void;
+    forEach(callbackfn: (this: void, value: T, index: number, array: T[]) => void): void;
+    forEach(callbackfn: (this: void, value: T, index: number, array: T[]) => void, thisArg: undefined): void;
     forEach<Z>(callbackfn: (this: Z, value: T, index: number, array: T[]) => void, thisArg: Z): void;
     /**
       * Calls a defined callback function on each element of an array, and returns an array that contains the results.
       * @param callbackfn A function that accepts up to three arguments. The map method calls the callbackfn function one time for each element in the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
       */
-    map<U>(this: [T, T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U, U, U, U];
-    map<U>(this: [T, T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U, U];
+    map<U>(this: [T, T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U, U, U, U];
+    map<U>(this: [T, T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U, U];
     map<Z, U>(this: [T, T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U, U];
     /**
       * Calls a defined callback function on each element of an array, and returns an array that contains the results.
       * @param callbackfn A function that accepts up to three arguments. The map method calls the callbackfn function one time for each element in the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
       */
-    map<U>(this: [T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U, U, U];
-    map<U>(this: [T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U];
+    map<U>(this: [T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U, U, U];
+    map<U>(this: [T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U];
     map<Z, U>(this: [T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U];
     /**
       * Calls a defined callback function on each element of an array, and returns an array that contains the results.
       * @param callbackfn A function that accepts up to three arguments. The map method calls the callbackfn function one time for each element in the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
       */
-    map<U>(this: [T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U, U];
-    map<U>(this: [T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U];
+    map<U>(this: [T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U, U];
+    map<U>(this: [T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U];
     map<Z, U>(this: [T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U];
     /**
       * Calls a defined callback function on each element of an array, and returns an array that contains the results.
       * @param callbackfn A function that accepts up to three arguments. The map method calls the callbackfn function one time for each element in the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
       */
-    map<U>(this: [T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U];
-    map<U>(this: [T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U];
+    map<U>(this: [T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U];
+    map<U>(this: [T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U];
     map<Z, U>(this: [T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U];
     /**
       * Calls a defined callback function on each element of an array, and returns an array that contains the results.
       * @param callbackfn A function that accepts up to three arguments. The map method calls the callbackfn function one time for each element in the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
       */
-    map<U>(callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): U[];
-    map<U>(callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): U[];
+    map<U>(callbackfn: (this: void, value: T, index: number, array: T[]) => U): U[];
+    map<U>(callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): U[];
     map<Z, U>(callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): U[];
     /**
       * Returns the elements of an array that meet the condition specified in a callback function.
       * @param callbackfn A function that accepts up to three arguments. The filter method calls the callbackfn function one time for each element in the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
       */
-    filter(callbackfn: (this: undefined, value: T, index: number, array: T[]) => any): T[];
-    filter(callbackfn: (this: undefined, value: T, index: number, array: T[]) => any, thisArg: undefined): T[];
+    filter(callbackfn: (this: void, value: T, index: number, array: T[]) => any): T[];
+    filter(callbackfn: (this: void, value: T, index: number, array: T[]) => any, thisArg: undefined): T[];
     filter<Z>(callbackfn: (this: Z, value: T, index: number, array: T[]) => any, thisArg: Z): T[];
     /**
       * Calls the specified callback function for all the elements in an array. The return value of the callback function is the accumulated result, and is provided as an argument in the next call to the callback function.
@@ -1587,8 +1587,8 @@ interface Int8Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    every(callbackfn: (this: undefined, value: number, index: number, array: Int8Array) => boolean): boolean;
-    every(callbackfn: (this: undefined, value: number, index: number, array: Int8Array) => boolean, thisArg: undefined): boolean;
+    every(callbackfn: (this: void, value: number, index: number, array: Int8Array) => boolean): boolean;
+    every(callbackfn: (this: void, value: number, index: number, array: Int8Array) => boolean, thisArg: undefined): boolean;
     every<Z>(callbackfn: (this: Z, value: number, index: number, array: Int8Array) => boolean, thisArg: Z): boolean;
 
     /**
@@ -1608,8 +1608,8 @@ interface Int8Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    filter(callbackfn: (this: undefined, value: number, index: number, array: Int8Array) => any): Int8Array;
-    filter(callbackfn: (this: undefined, value: number, index: number, array: Int8Array) => any, thisArg: undefined): Int8Array;
+    filter(callbackfn: (this: void, value: number, index: number, array: Int8Array) => any): Int8Array;
+    filter(callbackfn: (this: void, value: number, index: number, array: Int8Array) => any, thisArg: undefined): Int8Array;
     filter<Z>(callbackfn: (this: Z, value: number, index: number, array: Int8Array) => any, thisArg: Z): Int8Array;
 
     /**
@@ -1621,8 +1621,8 @@ interface Int8Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean): number | undefined;
-    find(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number | undefined;
+    find(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean): number | undefined;
+    find(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number | undefined;
     find<Z>(predicate: (this: Z, value: number, index: number, obj: Array<number>) => boolean, thisArg: Z): number | undefined;
 
     /**
@@ -1634,8 +1634,8 @@ interface Int8Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    findIndex(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean): number;
-    findIndex(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number;
+    findIndex(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean): number;
+    findIndex(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number;
     findIndex<Z>(predicate: (this: Z, value: number, index: number, obj: Array<number>) => boolean, thisArg: Z): number;
 
     /**
@@ -1645,8 +1645,8 @@ interface Int8Array {
       * @param thisArg  An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    forEach(callbackfn: (this: undefined, value: number, index: number, array: Int8Array) => void): void;
-    forEach(callbackfn: (this: undefined, value: number, index: number, array: Int8Array) => void, thisArg: undefined): void;
+    forEach(callbackfn: (this: void, value: number, index: number, array: Int8Array) => void): void;
+    forEach(callbackfn: (this: void, value: number, index: number, array: Int8Array) => void, thisArg: undefined): void;
     forEach<Z>(callbackfn: (this: Z, value: number, index: number, array: Int8Array) => void, thisArg: Z): void;
 
     /**
@@ -1685,8 +1685,8 @@ interface Int8Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    map(callbackfn: (this: undefined, value: number, index: number, array: Int8Array) => number): Int8Array;
-    map(callbackfn: (this: undefined, value: number, index: number, array: Int8Array) => number, thisArg: undefined): Int8Array;
+    map(callbackfn: (this: void, value: number, index: number, array: Int8Array) => number): Int8Array;
+    map(callbackfn: (this: void, value: number, index: number, array: Int8Array) => number, thisArg: undefined): Int8Array;
     map<Z>(callbackfn: (this: Z, value: number, index: number, array: Int8Array) => number, thisArg: Z): Int8Array;
 
     /**
@@ -1771,8 +1771,8 @@ interface Int8Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    some(callbackfn: (this: undefined, value: number, index: number, array: Int8Array) => boolean): boolean;
-    some(callbackfn: (this: undefined, value: number, index: number, array: Int8Array) => boolean, thisArg: undefined): boolean;
+    some(callbackfn: (this: void, value: number, index: number, array: Int8Array) => boolean): boolean;
+    some(callbackfn: (this: void, value: number, index: number, array: Int8Array) => boolean, thisArg: undefined): boolean;
     some<Z>(callbackfn: (this: Z, value: number, index: number, array: Int8Array) => boolean, thisArg: Z): boolean;
 
     /**
@@ -1825,8 +1825,8 @@ interface Int8ArrayConstructor {
       * @param mapfn A mapping function to call on every element of the array.
       * @param thisArg Value of 'this' used to invoke the mapfn.
       */
-    from(arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int8Array;
-    from(arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int8Array;
+    from(arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int8Array;
+    from(arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int8Array;
     from<Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array;
 
     from(arrayLike: ArrayLike<number>): Int8Array;
@@ -1878,8 +1878,8 @@ interface Uint8Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    every(callbackfn: (this: undefined, value: number, index: number, array: Uint8Array) => boolean): boolean;
-    every(callbackfn: (this: undefined, value: number, index: number, array: Uint8Array) => boolean, thisArg: undefined): boolean;
+    every(callbackfn: (this: void, value: number, index: number, array: Uint8Array) => boolean): boolean;
+    every(callbackfn: (this: void, value: number, index: number, array: Uint8Array) => boolean, thisArg: undefined): boolean;
     every<Z>(callbackfn: (this: Z, value: number, index: number, array: Uint8Array) => boolean, thisArg: Z): boolean;
 
     /**
@@ -1899,8 +1899,8 @@ interface Uint8Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    filter(callbackfn: (this: undefined, value: number, index: number, array: Uint8Array) => any): Uint8Array;
-    filter(callbackfn: (this: undefined, value: number, index: number, array: Uint8Array) => any, thisArg: undefined): Uint8Array;
+    filter(callbackfn: (this: void, value: number, index: number, array: Uint8Array) => any): Uint8Array;
+    filter(callbackfn: (this: void, value: number, index: number, array: Uint8Array) => any, thisArg: undefined): Uint8Array;
     filter<Z>(callbackfn: (this: Z, value: number, index: number, array: Uint8Array) => any, thisArg: Z): Uint8Array;
 
     /**
@@ -1912,8 +1912,8 @@ interface Uint8Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean): number | undefined;
-    find(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number | undefined;
+    find(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean): number | undefined;
+    find(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number | undefined;
     find<Z>(predicate: (this: Z, value: number, index: number, obj: Array<number>) => boolean, thisArg: Z): number | undefined;
 
     /**
@@ -1925,8 +1925,8 @@ interface Uint8Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    findIndex(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean): number;
-    findIndex(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number;
+    findIndex(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean): number;
+    findIndex(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number;
     findIndex<Z>(predicate: (this: Z, value: number, index: number, obj: Array<number>) => boolean, thisArg: Z): number;
 
     /**
@@ -1936,8 +1936,8 @@ interface Uint8Array {
       * @param thisArg  An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    forEach(callbackfn: (this: undefined, value: number, index: number, array: Uint8Array) => void): void;
-    forEach(callbackfn: (this: undefined, value: number, index: number, array: Uint8Array) => void, thisArg: undefined): void;
+    forEach(callbackfn: (this: void, value: number, index: number, array: Uint8Array) => void): void;
+    forEach(callbackfn: (this: void, value: number, index: number, array: Uint8Array) => void, thisArg: undefined): void;
     forEach<Z>(callbackfn: (this: Z, value: number, index: number, array: Uint8Array) => void, thisArg: Z): void;
 
     /**
@@ -1976,8 +1976,8 @@ interface Uint8Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    map(callbackfn: (this: undefined, value: number, index: number, array: Uint8Array) => number): Uint8Array;
-    map(callbackfn: (this: undefined, value: number, index: number, array: Uint8Array) => number, thisArg: undefined): Uint8Array;
+    map(callbackfn: (this: void, value: number, index: number, array: Uint8Array) => number): Uint8Array;
+    map(callbackfn: (this: void, value: number, index: number, array: Uint8Array) => number, thisArg: undefined): Uint8Array;
     map<Z>(callbackfn: (this: Z, value: number, index: number, array: Uint8Array) => number, thisArg: Z): Uint8Array;
 
     /**
@@ -2062,8 +2062,8 @@ interface Uint8Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    some(callbackfn: (this: undefined, value: number, index: number, array: Uint8Array) => boolean): boolean;
-    some(callbackfn: (this: undefined, value: number, index: number, array: Uint8Array) => boolean, thisArg: undefined): boolean;
+    some(callbackfn: (this: void, value: number, index: number, array: Uint8Array) => boolean): boolean;
+    some(callbackfn: (this: void, value: number, index: number, array: Uint8Array) => boolean, thisArg: undefined): boolean;
     some<Z>(callbackfn: (this: Z, value: number, index: number, array: Uint8Array) => boolean, thisArg: Z): boolean;
 
     /**
@@ -2117,8 +2117,8 @@ interface Uint8ArrayConstructor {
       * @param mapfn A mapping function to call on every element of the array.
       * @param thisArg Value of 'this' used to invoke the mapfn.
       */
-    from(arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8Array;
-    from(arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8Array;
+    from(arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint8Array;
+    from(arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8Array;
     from<Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array;
 
     from(arrayLike: ArrayLike<number>): Uint8Array;
@@ -2170,8 +2170,8 @@ interface Uint8ClampedArray {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    every(callbackfn: (this: undefined, value: number, index: number, array: Uint8ClampedArray) => boolean): boolean;
-    every(callbackfn: (this: undefined, value: number, index: number, array: Uint8ClampedArray) => boolean, thisArg: undefined): boolean;
+    every(callbackfn: (this: void, value: number, index: number, array: Uint8ClampedArray) => boolean): boolean;
+    every(callbackfn: (this: void, value: number, index: number, array: Uint8ClampedArray) => boolean, thisArg: undefined): boolean;
     every<Z>(callbackfn: (this: Z, value: number, index: number, array: Uint8ClampedArray) => boolean, thisArg: Z): boolean;
 
     /**
@@ -2191,8 +2191,8 @@ interface Uint8ClampedArray {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    filter(callbackfn: (this: undefined, value: number, index: number, array: Uint8ClampedArray) => any): Uint8ClampedArray;
-    filter(callbackfn: (this: undefined, value: number, index: number, array: Uint8ClampedArray) => any, thisArg: undefined): Uint8ClampedArray;
+    filter(callbackfn: (this: void, value: number, index: number, array: Uint8ClampedArray) => any): Uint8ClampedArray;
+    filter(callbackfn: (this: void, value: number, index: number, array: Uint8ClampedArray) => any, thisArg: undefined): Uint8ClampedArray;
     filter<Z>(callbackfn: (this: Z, value: number, index: number, array: Uint8ClampedArray) => any, thisArg: Z): Uint8ClampedArray;
 
     /**
@@ -2204,8 +2204,8 @@ interface Uint8ClampedArray {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean): number | undefined;
-    find(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number | undefined;
+    find(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean): number | undefined;
+    find(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number | undefined;
     find<Z>(predicate: (this: Z, value: number, index: number, obj: Array<number>) => boolean, thisArg: Z): number | undefined;
 
     /**
@@ -2217,8 +2217,8 @@ interface Uint8ClampedArray {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    findIndex(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean): number;
-    findIndex(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number;
+    findIndex(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean): number;
+    findIndex(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number;
     findIndex<Z>(predicate: (this: Z, value: number, index: number, obj: Array<number>) => boolean, thisArg: Z): number;
 
     /**
@@ -2228,8 +2228,8 @@ interface Uint8ClampedArray {
       * @param thisArg  An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    forEach(callbackfn: (this: undefined, value: number, index: number, array: Uint8ClampedArray) => void): void;
-    forEach(callbackfn: (this: undefined, value: number, index: number, array: Uint8ClampedArray) => void, thisArg: undefined): void;
+    forEach(callbackfn: (this: void, value: number, index: number, array: Uint8ClampedArray) => void): void;
+    forEach(callbackfn: (this: void, value: number, index: number, array: Uint8ClampedArray) => void, thisArg: undefined): void;
     forEach<Z>(callbackfn: (this: Z, value: number, index: number, array: Uint8ClampedArray) => void, thisArg: Z): void;
 
     /**
@@ -2268,8 +2268,8 @@ interface Uint8ClampedArray {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    map(callbackfn: (this: undefined, value: number, index: number, array: Uint8ClampedArray) => number): Uint8ClampedArray;
-    map(callbackfn: (this: undefined, value: number, index: number, array: Uint8ClampedArray) => number, thisArg: undefined): Uint8ClampedArray;
+    map(callbackfn: (this: void, value: number, index: number, array: Uint8ClampedArray) => number): Uint8ClampedArray;
+    map(callbackfn: (this: void, value: number, index: number, array: Uint8ClampedArray) => number, thisArg: undefined): Uint8ClampedArray;
     map<Z>(callbackfn: (this: Z, value: number, index: number, array: Uint8ClampedArray) => number, thisArg: Z): Uint8ClampedArray;
 
     /**
@@ -2354,8 +2354,8 @@ interface Uint8ClampedArray {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    some(callbackfn: (this: undefined, value: number, index: number, array: Uint8ClampedArray) => boolean): boolean;
-    some(callbackfn: (this: undefined, value: number, index: number, array: Uint8ClampedArray) => boolean, thisArg: undefined): boolean;
+    some(callbackfn: (this: void, value: number, index: number, array: Uint8ClampedArray) => boolean): boolean;
+    some(callbackfn: (this: void, value: number, index: number, array: Uint8ClampedArray) => boolean, thisArg: undefined): boolean;
     some<Z>(callbackfn: (this: Z, value: number, index: number, array: Uint8ClampedArray) => boolean, thisArg: Z): boolean;
 
     /**
@@ -2409,8 +2409,8 @@ interface Uint8ClampedArrayConstructor {
       * @param mapfn A mapping function to call on every element of the array.
       * @param thisArg Value of 'this' used to invoke the mapfn.
       */
-    from(arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8ClampedArray;
-    from(arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray;
+    from(arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint8ClampedArray;
+    from(arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray;
     from<Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray;
 
     from(arrayLike: ArrayLike<number>): Uint8ClampedArray;
@@ -2461,8 +2461,8 @@ interface Int16Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    every(callbackfn: (this: undefined, value: number, index: number, array: Int16Array) => boolean): boolean;
-    every(callbackfn: (this: undefined, value: number, index: number, array: Int16Array) => boolean, thisArg: undefined): boolean;
+    every(callbackfn: (this: void, value: number, index: number, array: Int16Array) => boolean): boolean;
+    every(callbackfn: (this: void, value: number, index: number, array: Int16Array) => boolean, thisArg: undefined): boolean;
     every<Z>(callbackfn: (this: Z, value: number, index: number, array: Int16Array) => boolean, thisArg: Z): boolean;
 
     /**
@@ -2482,8 +2482,8 @@ interface Int16Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    filter(callbackfn: (this: undefined, value: number, index: number, array: Int16Array) => any): Int16Array;
-    filter(callbackfn: (this: undefined, value: number, index: number, array: Int16Array) => any, thisArg: undefined): Int16Array;
+    filter(callbackfn: (this: void, value: number, index: number, array: Int16Array) => any): Int16Array;
+    filter(callbackfn: (this: void, value: number, index: number, array: Int16Array) => any, thisArg: undefined): Int16Array;
     filter<Z>(callbackfn: (this: Z, value: number, index: number, array: Int16Array) => any, thisArg: Z): Int16Array;
 
     /**
@@ -2495,8 +2495,8 @@ interface Int16Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean): number | undefined;
-    find(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number | undefined;
+    find(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean): number | undefined;
+    find(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number | undefined;
     find<Z>(predicate: (this: Z, value: number, index: number, obj: Array<number>) => boolean, thisArg: Z): number | undefined;
 
     /**
@@ -2508,8 +2508,8 @@ interface Int16Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    findIndex(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean): number;
-    findIndex(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number;
+    findIndex(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean): number;
+    findIndex(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number;
     findIndex<Z>(predicate: (this: Z, value: number, index: number, obj: Array<number>) => boolean, thisArg: Z): number;
 
     /**
@@ -2519,8 +2519,8 @@ interface Int16Array {
       * @param thisArg  An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    forEach(callbackfn: (this: undefined, value: number, index: number, array: Int16Array) => void): void;
-    forEach(callbackfn: (this: undefined, value: number, index: number, array: Int16Array) => void, thisArg: undefined): void;
+    forEach(callbackfn: (this: void, value: number, index: number, array: Int16Array) => void): void;
+    forEach(callbackfn: (this: void, value: number, index: number, array: Int16Array) => void, thisArg: undefined): void;
     forEach<Z>(callbackfn: (this: Z, value: number, index: number, array: Int16Array) => void, thisArg: Z): void;
 
     /**
@@ -2559,8 +2559,8 @@ interface Int16Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    map(callbackfn: (this: undefined, value: number, index: number, array: Int16Array) => number): Int16Array;
-    map(callbackfn: (this: undefined, value: number, index: number, array: Int16Array) => number, thisArg: undefined): Int16Array;
+    map(callbackfn: (this: void, value: number, index: number, array: Int16Array) => number): Int16Array;
+    map(callbackfn: (this: void, value: number, index: number, array: Int16Array) => number, thisArg: undefined): Int16Array;
     map<Z>(callbackfn: (this: Z, value: number, index: number, array: Int16Array) => number, thisArg: Z): Int16Array;
 
     /**
@@ -2645,8 +2645,8 @@ interface Int16Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    some(callbackfn: (this: undefined, value: number, index: number, array: Int16Array) => boolean): boolean;
-    some(callbackfn: (this: undefined, value: number, index: number, array: Int16Array) => boolean, thisArg: undefined): boolean;
+    some(callbackfn: (this: void, value: number, index: number, array: Int16Array) => boolean): boolean;
+    some(callbackfn: (this: void, value: number, index: number, array: Int16Array) => boolean, thisArg: undefined): boolean;
     some<Z>(callbackfn: (this: Z, value: number, index: number, array: Int16Array) => boolean, thisArg: Z): boolean;
 
     /**
@@ -2700,8 +2700,8 @@ interface Int16ArrayConstructor {
       * @param mapfn A mapping function to call on every element of the array.
       * @param thisArg Value of 'this' used to invoke the mapfn.
       */
-    from(arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int16Array;
-    from(arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int16Array;
+    from(arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int16Array;
+    from(arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int16Array;
     from<Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array;
 
     from(arrayLike: ArrayLike<number>): Int16Array;
@@ -2753,8 +2753,8 @@ interface Uint16Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    every(callbackfn: (this: undefined, value: number, index: number, array: Uint16Array) => boolean): boolean;
-    every(callbackfn: (this: undefined, value: number, index: number, array: Uint16Array) => boolean, thisArg: undefined): boolean;
+    every(callbackfn: (this: void, value: number, index: number, array: Uint16Array) => boolean): boolean;
+    every(callbackfn: (this: void, value: number, index: number, array: Uint16Array) => boolean, thisArg: undefined): boolean;
     every<Z>(callbackfn: (this: Z, value: number, index: number, array: Uint16Array) => boolean, thisArg: Z): boolean;
 
     /**
@@ -2774,8 +2774,8 @@ interface Uint16Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    filter(callbackfn: (this: undefined, value: number, index: number, array: Uint16Array) => any): Uint16Array;
-    filter(callbackfn: (this: undefined, value: number, index: number, array: Uint16Array) => any, thisArg: undefined): Uint16Array;
+    filter(callbackfn: (this: void, value: number, index: number, array: Uint16Array) => any): Uint16Array;
+    filter(callbackfn: (this: void, value: number, index: number, array: Uint16Array) => any, thisArg: undefined): Uint16Array;
     filter<Z>(callbackfn: (this: Z, value: number, index: number, array: Uint16Array) => any, thisArg: Z): Uint16Array;
 
     /**
@@ -2787,8 +2787,8 @@ interface Uint16Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean): number | undefined;
-    find(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number | undefined;
+    find(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean): number | undefined;
+    find(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number | undefined;
     find<Z>(predicate: (this: Z, value: number, index: number, obj: Array<number>) => boolean, thisArg: Z): number | undefined;
 
     /**
@@ -2800,8 +2800,8 @@ interface Uint16Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    findIndex(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean): number;
-    findIndex(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number;
+    findIndex(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean): number;
+    findIndex(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number;
     findIndex<Z>(predicate: (this: Z, value: number, index: number, obj: Array<number>) => boolean, thisArg: Z): number;
 
     /**
@@ -2811,8 +2811,8 @@ interface Uint16Array {
       * @param thisArg  An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    forEach(callbackfn: (this: undefined, value: number, index: number, array: Uint16Array) => void): void;
-    forEach(callbackfn: (this: undefined, value: number, index: number, array: Uint16Array) => void, thisArg: undefined): void;
+    forEach(callbackfn: (this: void, value: number, index: number, array: Uint16Array) => void): void;
+    forEach(callbackfn: (this: void, value: number, index: number, array: Uint16Array) => void, thisArg: undefined): void;
     forEach<Z>(callbackfn: (this: Z, value: number, index: number, array: Uint16Array) => void, thisArg: Z): void;
 
     /**
@@ -2851,8 +2851,8 @@ interface Uint16Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    map(callbackfn: (this: undefined, value: number, index: number, array: Uint16Array) => number): Uint16Array;
-    map(callbackfn: (this: undefined, value: number, index: number, array: Uint16Array) => number, thisArg: undefined): Uint16Array;
+    map(callbackfn: (this: void, value: number, index: number, array: Uint16Array) => number): Uint16Array;
+    map(callbackfn: (this: void, value: number, index: number, array: Uint16Array) => number, thisArg: undefined): Uint16Array;
     map<Z>(callbackfn: (this: Z, value: number, index: number, array: Uint16Array) => number, thisArg: Z): Uint16Array;
 
     /**
@@ -2937,8 +2937,8 @@ interface Uint16Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    some(callbackfn: (this: undefined, value: number, index: number, array: Uint16Array) => boolean): boolean;
-    some(callbackfn: (this: undefined, value: number, index: number, array: Uint16Array) => boolean, thisArg: undefined): boolean;
+    some(callbackfn: (this: void, value: number, index: number, array: Uint16Array) => boolean): boolean;
+    some(callbackfn: (this: void, value: number, index: number, array: Uint16Array) => boolean, thisArg: undefined): boolean;
     some<Z>(callbackfn: (this: Z, value: number, index: number, array: Uint16Array) => boolean, thisArg: Z): boolean;
 
     /**
@@ -2992,8 +2992,8 @@ interface Uint16ArrayConstructor {
       * @param mapfn A mapping function to call on every element of the array.
       * @param thisArg Value of 'this' used to invoke the mapfn.
       */
-    from(arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint16Array;
-    from(arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint16Array;
+    from(arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint16Array;
+    from(arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint16Array;
     from<Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array;
 
     from(arrayLike: ArrayLike<number>): Uint16Array;
@@ -3044,8 +3044,8 @@ interface Int32Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    every(callbackfn: (this: undefined, value: number, index: number, array: Int32Array) => boolean): boolean;
-    every(callbackfn: (this: undefined, value: number, index: number, array: Int32Array) => boolean, thisArg: undefined): boolean;
+    every(callbackfn: (this: void, value: number, index: number, array: Int32Array) => boolean): boolean;
+    every(callbackfn: (this: void, value: number, index: number, array: Int32Array) => boolean, thisArg: undefined): boolean;
     every<Z>(callbackfn: (this: Z, value: number, index: number, array: Int32Array) => boolean, thisArg: Z): boolean;
 
     /**
@@ -3065,8 +3065,8 @@ interface Int32Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    filter(callbackfn: (this: undefined, value: number, index: number, array: Int32Array) => any): Int32Array;
-    filter(callbackfn: (this: undefined, value: number, index: number, array: Int32Array) => any, thisArg: undefined): Int32Array;
+    filter(callbackfn: (this: void, value: number, index: number, array: Int32Array) => any): Int32Array;
+    filter(callbackfn: (this: void, value: number, index: number, array: Int32Array) => any, thisArg: undefined): Int32Array;
     filter<Z>(callbackfn: (this: Z, value: number, index: number, array: Int32Array) => any, thisArg: Z): Int32Array;
 
     /**
@@ -3078,8 +3078,8 @@ interface Int32Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean): number | undefined;
-    find(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number | undefined;
+    find(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean): number | undefined;
+    find(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number | undefined;
     find<Z>(predicate: (this: Z, value: number, index: number, obj: Array<number>) => boolean, thisArg: Z): number | undefined;
 
     /**
@@ -3091,8 +3091,8 @@ interface Int32Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    findIndex(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean): number;
-    findIndex(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number;
+    findIndex(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean): number;
+    findIndex(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number;
     findIndex<Z>(predicate: (this: Z, value: number, index: number, obj: Array<number>) => boolean, thisArg: Z): number;
 
     /**
@@ -3102,8 +3102,8 @@ interface Int32Array {
       * @param thisArg  An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    forEach(callbackfn: (this: undefined, value: number, index: number, array: Int32Array) => void): void;
-    forEach(callbackfn: (this: undefined, value: number, index: number, array: Int32Array) => void, thisArg: undefined): void;
+    forEach(callbackfn: (this: void, value: number, index: number, array: Int32Array) => void): void;
+    forEach(callbackfn: (this: void, value: number, index: number, array: Int32Array) => void, thisArg: undefined): void;
     forEach<Z>(callbackfn: (this: Z, value: number, index: number, array: Int32Array) => void, thisArg: Z): void;
 
     /**
@@ -3142,8 +3142,8 @@ interface Int32Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    map(callbackfn: (this: undefined, value: number, index: number, array: Int32Array) => number): Int32Array;
-    map(callbackfn: (this: undefined, value: number, index: number, array: Int32Array) => number, thisArg: undefined): Int32Array;
+    map(callbackfn: (this: void, value: number, index: number, array: Int32Array) => number): Int32Array;
+    map(callbackfn: (this: void, value: number, index: number, array: Int32Array) => number, thisArg: undefined): Int32Array;
     map<Z>(callbackfn: (this: Z, value: number, index: number, array: Int32Array) => number, thisArg: Z): Int32Array;
 
     /**
@@ -3228,8 +3228,8 @@ interface Int32Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    some(callbackfn: (this: undefined, value: number, index: number, array: Int32Array) => boolean): boolean;
-    some(callbackfn: (this: undefined, value: number, index: number, array: Int32Array) => boolean, thisArg: undefined): boolean;
+    some(callbackfn: (this: void, value: number, index: number, array: Int32Array) => boolean): boolean;
+    some(callbackfn: (this: void, value: number, index: number, array: Int32Array) => boolean, thisArg: undefined): boolean;
     some<Z>(callbackfn: (this: Z, value: number, index: number, array: Int32Array) => boolean, thisArg: Z): boolean;
 
     /**
@@ -3283,8 +3283,8 @@ interface Int32ArrayConstructor {
       * @param mapfn A mapping function to call on every element of the array.
       * @param thisArg Value of 'this' used to invoke the mapfn.
       */
-    from(arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int32Array;
-    from(arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int32Array;
+    from(arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int32Array;
+    from(arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int32Array;
     from<Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array;
 
     from(arrayLike: ArrayLike<number>): Int32Array;
@@ -3335,8 +3335,8 @@ interface Uint32Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    every(callbackfn: (this: undefined, value: number, index: number, array: Uint32Array) => boolean): boolean;
-    every(callbackfn: (this: undefined, value: number, index: number, array: Uint32Array) => boolean, thisArg: undefined): boolean;
+    every(callbackfn: (this: void, value: number, index: number, array: Uint32Array) => boolean): boolean;
+    every(callbackfn: (this: void, value: number, index: number, array: Uint32Array) => boolean, thisArg: undefined): boolean;
     every<Z>(callbackfn: (this: Z, value: number, index: number, array: Uint32Array) => boolean, thisArg: Z): boolean;
 
     /**
@@ -3356,8 +3356,8 @@ interface Uint32Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    filter(callbackfn: (this: undefined, value: number, index: number, array: Uint32Array) => any): Uint32Array;
-    filter(callbackfn: (this: undefined, value: number, index: number, array: Uint32Array) => any, thisArg: undefined): Uint32Array;
+    filter(callbackfn: (this: void, value: number, index: number, array: Uint32Array) => any): Uint32Array;
+    filter(callbackfn: (this: void, value: number, index: number, array: Uint32Array) => any, thisArg: undefined): Uint32Array;
     filter<Z>(callbackfn: (this: Z, value: number, index: number, array: Uint32Array) => any, thisArg: Z): Uint32Array;
 
     /**
@@ -3369,8 +3369,8 @@ interface Uint32Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean): number | undefined;
-    find(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number | undefined;
+    find(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean): number | undefined;
+    find(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number | undefined;
     find<Z>(predicate: (this: Z, value: number, index: number, obj: Array<number>) => boolean, thisArg: Z): number | undefined;
 
     /**
@@ -3382,8 +3382,8 @@ interface Uint32Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    findIndex(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean): number;
-    findIndex(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number;
+    findIndex(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean): number;
+    findIndex(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number;
     findIndex<Z>(predicate: (this: Z, value: number, index: number, obj: Array<number>) => boolean, thisArg: Z): number;
 
     /**
@@ -3393,8 +3393,8 @@ interface Uint32Array {
       * @param thisArg  An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    forEach(callbackfn: (this: undefined, value: number, index: number, array: Uint32Array) => void): void;
-    forEach(callbackfn: (this: undefined, value: number, index: number, array: Uint32Array) => void, thisArg: undefined): void;
+    forEach(callbackfn: (this: void, value: number, index: number, array: Uint32Array) => void): void;
+    forEach(callbackfn: (this: void, value: number, index: number, array: Uint32Array) => void, thisArg: undefined): void;
     forEach<Z>(callbackfn: (this: Z, value: number, index: number, array: Uint32Array) => void, thisArg: Z): void;
 
     /**
@@ -3433,8 +3433,8 @@ interface Uint32Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    map(callbackfn: (this: undefined, value: number, index: number, array: Uint32Array) => number): Uint32Array;
-    map(callbackfn: (this: undefined, value: number, index: number, array: Uint32Array) => number, thisArg: undefined): Uint32Array;
+    map(callbackfn: (this: void, value: number, index: number, array: Uint32Array) => number): Uint32Array;
+    map(callbackfn: (this: void, value: number, index: number, array: Uint32Array) => number, thisArg: undefined): Uint32Array;
     map<Z>(callbackfn: (this: Z, value: number, index: number, array: Uint32Array) => number, thisArg: Z): Uint32Array;
 
     /**
@@ -3519,8 +3519,8 @@ interface Uint32Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    some(callbackfn: (this: undefined, value: number, index: number, array: Uint32Array) => boolean): boolean;
-    some(callbackfn: (this: undefined, value: number, index: number, array: Uint32Array) => boolean, thisArg: undefined): boolean;
+    some(callbackfn: (this: void, value: number, index: number, array: Uint32Array) => boolean): boolean;
+    some(callbackfn: (this: void, value: number, index: number, array: Uint32Array) => boolean, thisArg: undefined): boolean;
     some<Z>(callbackfn: (this: Z, value: number, index: number, array: Uint32Array) => boolean, thisArg: Z): boolean;
 
     /**
@@ -3574,8 +3574,8 @@ interface Uint32ArrayConstructor {
       * @param mapfn A mapping function to call on every element of the array.
       * @param thisArg Value of 'this' used to invoke the mapfn.
       */
-    from(arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint32Array;
-    from(arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint32Array;
+    from(arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint32Array;
+    from(arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint32Array;
     from<Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array;
 
     from(arrayLike: ArrayLike<number>): Uint32Array;
@@ -3626,8 +3626,8 @@ interface Float32Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    every(callbackfn: (this: undefined, value: number, index: number, array: Float32Array) => boolean): boolean;
-    every(callbackfn: (this: undefined, value: number, index: number, array: Float32Array) => boolean, thisArg: undefined): boolean;
+    every(callbackfn: (this: void, value: number, index: number, array: Float32Array) => boolean): boolean;
+    every(callbackfn: (this: void, value: number, index: number, array: Float32Array) => boolean, thisArg: undefined): boolean;
     every<Z>(callbackfn: (this: Z, value: number, index: number, array: Float32Array) => boolean, thisArg: Z): boolean;
 
     /**
@@ -3647,8 +3647,8 @@ interface Float32Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    filter(callbackfn: (this: undefined, value: number, index: number, array: Float32Array) => any): Float32Array;
-    filter(callbackfn: (this: undefined, value: number, index: number, array: Float32Array) => any, thisArg: undefined): Float32Array;
+    filter(callbackfn: (this: void, value: number, index: number, array: Float32Array) => any): Float32Array;
+    filter(callbackfn: (this: void, value: number, index: number, array: Float32Array) => any, thisArg: undefined): Float32Array;
     filter<Z>(callbackfn: (this: Z, value: number, index: number, array: Float32Array) => any, thisArg: Z): Float32Array;
 
     /**
@@ -3660,8 +3660,8 @@ interface Float32Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean): number | undefined;
-    find(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number | undefined;
+    find(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean): number | undefined;
+    find(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number | undefined;
     find<Z>(predicate: (this: Z, value: number, index: number, obj: Array<number>) => boolean, thisArg: Z): number | undefined;
 
     /**
@@ -3673,8 +3673,8 @@ interface Float32Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    findIndex(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean): number;
-    findIndex(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number;
+    findIndex(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean): number;
+    findIndex(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number;
     findIndex<Z>(predicate: (this: Z, value: number, index: number, obj: Array<number>) => boolean, thisArg: Z): number;
 
     /**
@@ -3684,8 +3684,8 @@ interface Float32Array {
       * @param thisArg  An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    forEach(callbackfn: (this: undefined, value: number, index: number, array: Float32Array) => void): void;
-    forEach(callbackfn: (this: undefined, value: number, index: number, array: Float32Array) => void, thisArg: undefined): void;
+    forEach(callbackfn: (this: void, value: number, index: number, array: Float32Array) => void): void;
+    forEach(callbackfn: (this: void, value: number, index: number, array: Float32Array) => void, thisArg: undefined): void;
     forEach<Z>(callbackfn: (this: Z, value: number, index: number, array: Float32Array) => void, thisArg: Z): void;
 
     /**
@@ -3724,8 +3724,8 @@ interface Float32Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    map(callbackfn: (this: undefined, value: number, index: number, array: Float32Array) => number): Float32Array;
-    map(callbackfn: (this: undefined, value: number, index: number, array: Float32Array) => number, thisArg: undefined): Float32Array;
+    map(callbackfn: (this: void, value: number, index: number, array: Float32Array) => number): Float32Array;
+    map(callbackfn: (this: void, value: number, index: number, array: Float32Array) => number, thisArg: undefined): Float32Array;
     map<Z>(callbackfn: (this: Z, value: number, index: number, array: Float32Array) => number, thisArg: Z): Float32Array;
 
     /**
@@ -3810,8 +3810,8 @@ interface Float32Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    some(callbackfn: (this: undefined, value: number, index: number, array: Float32Array) => boolean): boolean;
-    some(callbackfn: (this: undefined, value: number, index: number, array: Float32Array) => boolean, thisArg: undefined): boolean;
+    some(callbackfn: (this: void, value: number, index: number, array: Float32Array) => boolean): boolean;
+    some(callbackfn: (this: void, value: number, index: number, array: Float32Array) => boolean, thisArg: undefined): boolean;
     some<Z>(callbackfn: (this: Z, value: number, index: number, array: Float32Array) => boolean, thisArg: Z): boolean;
 
     /**
@@ -3865,8 +3865,8 @@ interface Float32ArrayConstructor {
       * @param mapfn A mapping function to call on every element of the array.
       * @param thisArg Value of 'this' used to invoke the mapfn.
       */
-    from(arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Float32Array;
-    from(arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float32Array;
+    from(arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Float32Array;
+    from(arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float32Array;
     from<Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array;
 
     from(arrayLike: ArrayLike<number>): Float32Array;
@@ -3918,8 +3918,8 @@ interface Float64Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    every(callbackfn: (this: undefined, value: number, index: number, array: Float64Array) => boolean): boolean;
-    every(callbackfn: (this: undefined, value: number, index: number, array: Float64Array) => boolean, thisArg: undefined): boolean;
+    every(callbackfn: (this: void, value: number, index: number, array: Float64Array) => boolean): boolean;
+    every(callbackfn: (this: void, value: number, index: number, array: Float64Array) => boolean, thisArg: undefined): boolean;
     every<Z>(callbackfn: (this: Z, value: number, index: number, array: Float64Array) => boolean, thisArg: Z): boolean;
 
     /**
@@ -3939,8 +3939,8 @@ interface Float64Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    filter(callbackfn: (this: undefined, value: number, index: number, array: Float64Array) => any): Float64Array;
-    filter(callbackfn: (this: undefined, value: number, index: number, array: Float64Array) => any, thisArg: undefined): Float64Array;
+    filter(callbackfn: (this: void, value: number, index: number, array: Float64Array) => any): Float64Array;
+    filter(callbackfn: (this: void, value: number, index: number, array: Float64Array) => any, thisArg: undefined): Float64Array;
     filter<Z>(callbackfn: (this: Z, value: number, index: number, array: Float64Array) => any, thisArg: Z): Float64Array;
 
     /**
@@ -3952,8 +3952,8 @@ interface Float64Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean): number | undefined;
-    find(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number | undefined;
+    find(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean): number | undefined;
+    find(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number | undefined;
     find<Z>(predicate: (this: Z, value: number, index: number, obj: Array<number>) => boolean, thisArg: Z): number | undefined;
 
     /**
@@ -3965,8 +3965,8 @@ interface Float64Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    findIndex(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean): number;
-    findIndex(predicate: (this: undefined, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number;
+    findIndex(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean): number;
+    findIndex(predicate: (this: void, value: number, index: number, obj: Array<number>) => boolean, thisArg: undefined): number;
     findIndex<Z>(predicate: (this: Z, value: number, index: number, obj: Array<number>) => boolean, thisArg: Z): number;
 
     /**
@@ -3976,8 +3976,8 @@ interface Float64Array {
       * @param thisArg  An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    forEach(callbackfn: (this: undefined, value: number, index: number, array: Float64Array) => void): void;
-    forEach(callbackfn: (this: undefined, value: number, index: number, array: Float64Array) => void, thisArg: undefined): void;
+    forEach(callbackfn: (this: void, value: number, index: number, array: Float64Array) => void): void;
+    forEach(callbackfn: (this: void, value: number, index: number, array: Float64Array) => void, thisArg: undefined): void;
     forEach<Z>(callbackfn: (this: Z, value: number, index: number, array: Float64Array) => void, thisArg: Z): void;
 
     /**
@@ -4016,8 +4016,8 @@ interface Float64Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    map(callbackfn: (this: undefined, value: number, index: number, array: Float64Array) => number): Float64Array;
-    map(callbackfn: (this: undefined, value: number, index: number, array: Float64Array) => number, thisArg: undefined): Float64Array;
+    map(callbackfn: (this: void, value: number, index: number, array: Float64Array) => number): Float64Array;
+    map(callbackfn: (this: void, value: number, index: number, array: Float64Array) => number, thisArg: undefined): Float64Array;
     map<Z>(callbackfn: (this: Z, value: number, index: number, array: Float64Array) => number, thisArg: Z): Float64Array;
 
     /**
@@ -4102,8 +4102,8 @@ interface Float64Array {
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    some(callbackfn: (this: undefined, value: number, index: number, array: Float64Array) => boolean): boolean;
-    some(callbackfn: (this: undefined, value: number, index: number, array: Float64Array) => boolean, thisArg: undefined): boolean;
+    some(callbackfn: (this: void, value: number, index: number, array: Float64Array) => boolean): boolean;
+    some(callbackfn: (this: void, value: number, index: number, array: Float64Array) => boolean, thisArg: undefined): boolean;
     some<Z>(callbackfn: (this: Z, value: number, index: number, array: Float64Array) => boolean, thisArg: Z): boolean;
 
     /**
@@ -4157,8 +4157,8 @@ interface Float64ArrayConstructor {
       * @param mapfn A mapping function to call on every element of the array.
       * @param thisArg Value of 'this' used to invoke the mapfn.
       */
-    from(arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Float64Array;
-    from(arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float64Array;
+    from(arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Float64Array;
+    from(arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float64Array;
     from<Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array;
 
     from(arrayLike: ArrayLike<number>): Float64Array;
diff --git a/tests/baselines/reference/2dArrays.types b/tests/baselines/reference/2dArrays.types
index cd5ddc0efa5..45672187306 100644
--- a/tests/baselines/reference/2dArrays.types
+++ b/tests/baselines/reference/2dArrays.types
@@ -26,12 +26,12 @@ class Board {
 
         return this.ships.every(function (val) { return val.isSunk; });
 >this.ships.every(function (val) { return val.isSunk; }) : boolean
->this.ships.every : { (callbackfn: (this: undefined, value: Ship, index: number, array: Ship[]) => boolean): boolean; (callbackfn: (this: undefined, value: Ship, index: number, array: Ship[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: Ship, index: number, array: Ship[]) => boolean, thisArg: Z): boolean; }
+>this.ships.every : { (callbackfn: (this: void, value: Ship, index: number, array: Ship[]) => boolean): boolean; (callbackfn: (this: void, value: Ship, index: number, array: Ship[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: Ship, index: number, array: Ship[]) => boolean, thisArg: Z): boolean; }
 >this.ships : Ship[]
 >this : this
 >ships : Ship[]
->every : { (callbackfn: (this: undefined, value: Ship, index: number, array: Ship[]) => boolean): boolean; (callbackfn: (this: undefined, value: Ship, index: number, array: Ship[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: Ship, index: number, array: Ship[]) => boolean, thisArg: Z): boolean; }
->function (val) { return val.isSunk; } : (this: undefined, val: Ship) => boolean
+>every : { (callbackfn: (this: void, value: Ship, index: number, array: Ship[]) => boolean): boolean; (callbackfn: (this: void, value: Ship, index: number, array: Ship[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: Ship, index: number, array: Ship[]) => boolean, thisArg: Z): boolean; }
+>function (val) { return val.isSunk; } : (this: void, val: Ship) => boolean
 >val : Ship
 >val.isSunk : boolean
 >val : Ship
diff --git a/tests/baselines/reference/anyInferenceAnonymousFunctions.types b/tests/baselines/reference/anyInferenceAnonymousFunctions.types
index ee176215421..b015d350760 100644
--- a/tests/baselines/reference/anyInferenceAnonymousFunctions.types
+++ b/tests/baselines/reference/anyInferenceAnonymousFunctions.types
@@ -57,10 +57,10 @@ paired.reduce((b3, b4) => b3.concat({}), []);
 
 paired.map((c1) => c1.count);
 >paired.map((c1) => c1.count) : any[]
->paired.map : { <U>(this: [any, any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U, U, U]; <U>(this: [any, any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [any, any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U]; <U>(this: [any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U]; <U>(this: [any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U]; <U>(this: [any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): U[]; <U>(callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): U[]; }
+>paired.map : { <U>(this: [any, any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U, U, U]; <U>(this: [any, any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [any, any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U]; <U>(this: [any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U]; <U>(this: [any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U]; <U>(this: [any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: any, index: number, array: any[]) => U): U[]; <U>(callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): U[]; }
 >paired : any[]
->map : { <U>(this: [any, any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U, U, U]; <U>(this: [any, any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [any, any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U]; <U>(this: [any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U]; <U>(this: [any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U]; <U>(this: [any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): U[]; <U>(callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): U[]; }
->(c1) => c1.count : (this: undefined, c1: any) => any
+>map : { <U>(this: [any, any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U, U, U]; <U>(this: [any, any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [any, any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U]; <U>(this: [any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U]; <U>(this: [any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U]; <U>(this: [any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: any, index: number, array: any[]) => U): U[]; <U>(callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): U[]; }
+>(c1) => c1.count : (this: void, c1: any) => any
 >c1 : any
 >c1.count : any
 >c1 : any
@@ -68,10 +68,10 @@ paired.map((c1) => c1.count);
 
 paired.map(function (c2) { return c2.count; });
 >paired.map(function (c2) { return c2.count; }) : any[]
->paired.map : { <U>(this: [any, any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U, U, U]; <U>(this: [any, any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [any, any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U]; <U>(this: [any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U]; <U>(this: [any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U]; <U>(this: [any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): U[]; <U>(callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): U[]; }
+>paired.map : { <U>(this: [any, any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U, U, U]; <U>(this: [any, any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [any, any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U]; <U>(this: [any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U]; <U>(this: [any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U]; <U>(this: [any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: any, index: number, array: any[]) => U): U[]; <U>(callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): U[]; }
 >paired : any[]
->map : { <U>(this: [any, any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U, U, U]; <U>(this: [any, any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [any, any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U]; <U>(this: [any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U]; <U>(this: [any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U]; <U>(this: [any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): U[]; <U>(callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): U[]; }
->function (c2) { return c2.count; } : (this: undefined, c2: any) => any
+>map : { <U>(this: [any, any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U, U, U]; <U>(this: [any, any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [any, any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U]; <U>(this: [any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U]; <U>(this: [any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U]; <U>(this: [any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: any, index: number, array: any[]) => U): U[]; <U>(callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): U[]; }
+>function (c2) { return c2.count; } : (this: void, c2: any) => any
 >c2 : any
 >c2.count : any
 >c2 : any
diff --git a/tests/baselines/reference/argumentsAsPropertyName.types b/tests/baselines/reference/argumentsAsPropertyName.types
index 00773d2a3cf..73397199436 100644
--- a/tests/baselines/reference/argumentsAsPropertyName.types
+++ b/tests/baselines/reference/argumentsAsPropertyName.types
@@ -42,13 +42,13 @@ function myFunction(myType: MyType) {
 
         [1, 2, 3].forEach(function(j) { use(x); })
 >[1, 2, 3].forEach(function(j) { use(x); }) : void
->[1, 2, 3].forEach : { (callbackfn: (this: undefined, value: number, index: number, array: number[]) => void): void; (callbackfn: (this: undefined, value: number, index: number, array: number[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: number, index: number, array: number[]) => void, thisArg: Z): void; }
+>[1, 2, 3].forEach : { (callbackfn: (this: void, value: number, index: number, array: number[]) => void): void; (callbackfn: (this: void, value: number, index: number, array: number[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: number, index: number, array: number[]) => void, thisArg: Z): void; }
 >[1, 2, 3] : number[]
 >1 : 1
 >2 : 2
 >3 : 3
->forEach : { (callbackfn: (this: undefined, value: number, index: number, array: number[]) => void): void; (callbackfn: (this: undefined, value: number, index: number, array: number[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: number, index: number, array: number[]) => void, thisArg: Z): void; }
->function(j) { use(x); } : (this: undefined, j: number) => void
+>forEach : { (callbackfn: (this: void, value: number, index: number, array: number[]) => void): void; (callbackfn: (this: void, value: number, index: number, array: number[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: number, index: number, array: number[]) => void, thisArg: Z): void; }
+>function(j) { use(x); } : (this: void, j: number) => void
 >j : number
 >use(x) : any
 >use : (s: any) => any
diff --git a/tests/baselines/reference/arrayConcatMap.types b/tests/baselines/reference/arrayConcatMap.types
index da4e998f92c..b234b7beb26 100644
--- a/tests/baselines/reference/arrayConcatMap.types
+++ b/tests/baselines/reference/arrayConcatMap.types
@@ -2,7 +2,7 @@
 var x = [].concat([{ a: 1 }], [{ a: 2 }])
 >x : any[]
 >[].concat([{ a: 1 }], [{ a: 2 }])          .map(b => b.a) : any[]
->[].concat([{ a: 1 }], [{ a: 2 }])          .map : { <U>(this: [any, any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U, U, U]; <U>(this: [any, any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [any, any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U]; <U>(this: [any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U]; <U>(this: [any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U]; <U>(this: [any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): U[]; <U>(callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): U[]; }
+>[].concat([{ a: 1 }], [{ a: 2 }])          .map : { <U>(this: [any, any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U, U, U]; <U>(this: [any, any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [any, any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U]; <U>(this: [any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U]; <U>(this: [any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U]; <U>(this: [any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: any, index: number, array: any[]) => U): U[]; <U>(callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): U[]; }
 >[].concat([{ a: 1 }], [{ a: 2 }]) : any[]
 >[].concat : { (...items: any[][]): any[]; (...items: any[]): any[]; }
 >[] : undefined[]
@@ -17,8 +17,8 @@ var x = [].concat([{ a: 1 }], [{ a: 2 }])
 >2 : 2
 
           .map(b => b.a);
->map : { <U>(this: [any, any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U, U, U]; <U>(this: [any, any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [any, any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U]; <U>(this: [any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U]; <U>(this: [any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U]; <U>(this: [any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): U[]; <U>(callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): U[]; }
->b => b.a : (this: undefined, b: any) => any
+>map : { <U>(this: [any, any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U, U, U]; <U>(this: [any, any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [any, any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U]; <U>(this: [any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U]; <U>(this: [any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U]; <U>(this: [any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: any, index: number, array: any[]) => U): U[]; <U>(callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): U[]; }
+>b => b.a : (this: void, b: any) => any
 >b : any
 >b.a : any
 >b : any
diff --git a/tests/baselines/reference/arrayFilter.types b/tests/baselines/reference/arrayFilter.types
index de11296f832..23ab4d915bd 100644
--- a/tests/baselines/reference/arrayFilter.types
+++ b/tests/baselines/reference/arrayFilter.types
@@ -22,10 +22,10 @@ var foo = [
 
 foo.filter(x => x.name); //should accepted all possible types not only boolean! 
 >foo.filter(x => x.name) : { name: string; }[]
->foo.filter : { (callbackfn: (this: undefined, value: { name: string; }, index: number, array: { name: string; }[]) => any): { name: string; }[]; (callbackfn: (this: undefined, value: { name: string; }, index: number, array: { name: string; }[]) => any, thisArg: undefined): { name: string; }[]; <Z>(callbackfn: (this: Z, value: { name: string; }, index: number, array: { name: string; }[]) => any, thisArg: Z): { name: string; }[]; }
+>foo.filter : { (callbackfn: (this: void, value: { name: string; }, index: number, array: { name: string; }[]) => any): { name: string; }[]; (callbackfn: (this: void, value: { name: string; }, index: number, array: { name: string; }[]) => any, thisArg: undefined): { name: string; }[]; <Z>(callbackfn: (this: Z, value: { name: string; }, index: number, array: { name: string; }[]) => any, thisArg: Z): { name: string; }[]; }
 >foo : { name: string; }[]
->filter : { (callbackfn: (this: undefined, value: { name: string; }, index: number, array: { name: string; }[]) => any): { name: string; }[]; (callbackfn: (this: undefined, value: { name: string; }, index: number, array: { name: string; }[]) => any, thisArg: undefined): { name: string; }[]; <Z>(callbackfn: (this: Z, value: { name: string; }, index: number, array: { name: string; }[]) => any, thisArg: Z): { name: string; }[]; }
->x => x.name : (this: undefined, x: { name: string; }) => string
+>filter : { (callbackfn: (this: void, value: { name: string; }, index: number, array: { name: string; }[]) => any): { name: string; }[]; (callbackfn: (this: void, value: { name: string; }, index: number, array: { name: string; }[]) => any, thisArg: undefined): { name: string; }[]; <Z>(callbackfn: (this: Z, value: { name: string; }, index: number, array: { name: string; }[]) => any, thisArg: Z): { name: string; }[]; }
+>x => x.name : (this: void, x: { name: string; }) => string
 >x : { name: string; }
 >x.name : string
 >x : { name: string; }
diff --git a/tests/baselines/reference/bestChoiceType.types b/tests/baselines/reference/bestChoiceType.types
index c4728de2ff1..15c5ecd4858 100644
--- a/tests/baselines/reference/bestChoiceType.types
+++ b/tests/baselines/reference/bestChoiceType.types
@@ -3,7 +3,7 @@
 
 (''.match(/ /) || []).map(s => s.toLowerCase());
 >(''.match(/ /) || []).map(s => s.toLowerCase()) : string[]
->(''.match(/ /) || []).map : { <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
+>(''.match(/ /) || []).map : { <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
 >(''.match(/ /) || []) : RegExpMatchArray
 >''.match(/ /) || [] : RegExpMatchArray
 >''.match(/ /) : RegExpMatchArray | null
@@ -12,8 +12,8 @@
 >match : (regexp: string | RegExp) => RegExpMatchArray | null
 >/ / : RegExp
 >[] : never[]
->map : { <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
->s => s.toLowerCase() : (this: undefined, s: string) => string
+>map : { <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
+>s => s.toLowerCase() : (this: void, s: string) => string
 >s : string
 >s.toLowerCase() : string
 >s.toLowerCase : () => string
@@ -42,10 +42,10 @@ function f1() {
     let z = y.map(s => s.toLowerCase());
 >z : string[]
 >y.map(s => s.toLowerCase()) : string[]
->y.map : { <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
+>y.map : { <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
 >y : RegExpMatchArray
->map : { <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
->s => s.toLowerCase() : (this: undefined, s: string) => string
+>map : { <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
+>s => s.toLowerCase() : (this: void, s: string) => string
 >s : string
 >s.toLowerCase() : string
 >s.toLowerCase : () => string
@@ -74,10 +74,10 @@ function f2() {
     let z = y.map(s => s.toLowerCase());
 >z : string[]
 >y.map(s => s.toLowerCase()) : string[]
->y.map : { <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
+>y.map : { <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
 >y : RegExpMatchArray
->map : { <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
->s => s.toLowerCase() : (this: undefined, s: string) => string
+>map : { <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
+>s => s.toLowerCase() : (this: void, s: string) => string
 >s : string
 >s.toLowerCase() : string
 >s.toLowerCase : () => string
diff --git a/tests/baselines/reference/checkSwitchStatementIfCaseTypeIsString.types b/tests/baselines/reference/checkSwitchStatementIfCaseTypeIsString.types
index 7bae17fb922..115930df20a 100644
--- a/tests/baselines/reference/checkSwitchStatementIfCaseTypeIsString.types
+++ b/tests/baselines/reference/checkSwitchStatementIfCaseTypeIsString.types
@@ -13,10 +13,10 @@ class A {
 
         x.forEach((v) => {
 >x.forEach((v) => {            switch(v) {                case "test": use(this);            }        }) : void
->x.forEach : { (callbackfn: (this: undefined, value: string, index: number, array: string[]) => void): void; (callbackfn: (this: undefined, value: string, index: number, array: string[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => void, thisArg: Z): void; }
+>x.forEach : { (callbackfn: (this: void, value: string, index: number, array: string[]) => void): void; (callbackfn: (this: void, value: string, index: number, array: string[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => void, thisArg: Z): void; }
 >x : string[]
->forEach : { (callbackfn: (this: undefined, value: string, index: number, array: string[]) => void): void; (callbackfn: (this: undefined, value: string, index: number, array: string[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => void, thisArg: Z): void; }
->(v) => {            switch(v) {                case "test": use(this);            }        } : (this: undefined, v: string) => void
+>forEach : { (callbackfn: (this: void, value: string, index: number, array: string[]) => void): void; (callbackfn: (this: void, value: string, index: number, array: string[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => void, thisArg: Z): void; }
+>(v) => {            switch(v) {                case "test": use(this);            }        } : (this: void, v: string) => void
 >v : string
 
             switch(v) {
diff --git a/tests/baselines/reference/classExpressionWithStaticProperties3.types b/tests/baselines/reference/classExpressionWithStaticProperties3.types
index ff2871e4d94..6f598e6e42e 100644
--- a/tests/baselines/reference/classExpressionWithStaticProperties3.types
+++ b/tests/baselines/reference/classExpressionWithStaticProperties3.types
@@ -41,10 +41,10 @@ for (let i = 0; i < 3; i++) {
 }
 arr.forEach(C => console.log(C.y()));
 >arr.forEach(C => console.log(C.y())) : void
->arr.forEach : { (callbackfn: (this: undefined, value: { y(): number; }, index: number, array: { y(): number; }[]) => void): void; (callbackfn: (this: undefined, value: { y(): number; }, index: number, array: { y(): number; }[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: { y(): number; }, index: number, array: { y(): number; }[]) => void, thisArg: Z): void; }
+>arr.forEach : { (callbackfn: (this: void, value: { y(): number; }, index: number, array: { y(): number; }[]) => void): void; (callbackfn: (this: void, value: { y(): number; }, index: number, array: { y(): number; }[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: { y(): number; }, index: number, array: { y(): number; }[]) => void, thisArg: Z): void; }
 >arr : { y(): number; }[]
->forEach : { (callbackfn: (this: undefined, value: { y(): number; }, index: number, array: { y(): number; }[]) => void): void; (callbackfn: (this: undefined, value: { y(): number; }, index: number, array: { y(): number; }[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: { y(): number; }, index: number, array: { y(): number; }[]) => void, thisArg: Z): void; }
->C => console.log(C.y()) : (this: undefined, C: { y(): number; }) => any
+>forEach : { (callbackfn: (this: void, value: { y(): number; }, index: number, array: { y(): number; }[]) => void): void; (callbackfn: (this: void, value: { y(): number; }, index: number, array: { y(): number; }[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: { y(): number; }, index: number, array: { y(): number; }[]) => void, thisArg: Z): void; }
+>C => console.log(C.y()) : (this: void, C: { y(): number; }) => any
 >C : { y(): number; }
 >console.log(C.y()) : any
 >console.log : any
diff --git a/tests/baselines/reference/classExpressionWithStaticPropertiesES63.types b/tests/baselines/reference/classExpressionWithStaticPropertiesES63.types
index da771990ee9..b5cd81e8590 100644
--- a/tests/baselines/reference/classExpressionWithStaticPropertiesES63.types
+++ b/tests/baselines/reference/classExpressionWithStaticPropertiesES63.types
@@ -41,10 +41,10 @@ for (let i = 0; i < 3; i++) {
 }
 arr.forEach(C => console.log(C.y()));
 >arr.forEach(C => console.log(C.y())) : void
->arr.forEach : { (callbackfn: (this: undefined, value: { y(): number; }, index: number, array: { y(): number; }[]) => void): void; (callbackfn: (this: undefined, value: { y(): number; }, index: number, array: { y(): number; }[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: { y(): number; }, index: number, array: { y(): number; }[]) => void, thisArg: Z): void; }
+>arr.forEach : { (callbackfn: (this: void, value: { y(): number; }, index: number, array: { y(): number; }[]) => void): void; (callbackfn: (this: void, value: { y(): number; }, index: number, array: { y(): number; }[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: { y(): number; }, index: number, array: { y(): number; }[]) => void, thisArg: Z): void; }
 >arr : { y(): number; }[]
->forEach : { (callbackfn: (this: undefined, value: { y(): number; }, index: number, array: { y(): number; }[]) => void): void; (callbackfn: (this: undefined, value: { y(): number; }, index: number, array: { y(): number; }[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: { y(): number; }, index: number, array: { y(): number; }[]) => void, thisArg: Z): void; }
->C => console.log(C.y()) : (this: undefined, C: { y(): number; }) => any
+>forEach : { (callbackfn: (this: void, value: { y(): number; }, index: number, array: { y(): number; }[]) => void): void; (callbackfn: (this: void, value: { y(): number; }, index: number, array: { y(): number; }[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: { y(): number; }, index: number, array: { y(): number; }[]) => void, thisArg: Z): void; }
+>C => console.log(C.y()) : (this: void, C: { y(): number; }) => any
 >C : { y(): number; }
 >console.log(C.y()) : any
 >console.log : any
diff --git a/tests/baselines/reference/commaOperatorInConditionalExpression.types b/tests/baselines/reference/commaOperatorInConditionalExpression.types
index de8a95cd6c3..7ee2ab72c77 100644
--- a/tests/baselines/reference/commaOperatorInConditionalExpression.types
+++ b/tests/baselines/reference/commaOperatorInConditionalExpression.types
@@ -5,13 +5,13 @@ function f (m: string) {
 
     [1, 2, 3].map(i => {
 >[1, 2, 3].map(i => {        return true? { [m]: i } : { [m]: i + 1 }    }) : { [x: string]: number; }[]
->[1, 2, 3].map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>[1, 2, 3].map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
 >[1, 2, 3] : number[]
 >1 : 1
 >2 : 2
 >3 : 3
->map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
->i => {        return true? { [m]: i } : { [m]: i + 1 }    } : (this: undefined, i: number) => { [x: string]: number; }
+>map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>i => {        return true? { [m]: i } : { [m]: i + 1 }    } : (this: void, i: number) => { [x: string]: number; }
 >i : number
 
         return true? { [m]: i } : { [m]: i + 1 }
diff --git a/tests/baselines/reference/commentInMethodCall.types b/tests/baselines/reference/commentInMethodCall.types
index eebbc15823e..b74323d1477 100644
--- a/tests/baselines/reference/commentInMethodCall.types
+++ b/tests/baselines/reference/commentInMethodCall.types
@@ -5,10 +5,10 @@ var s: string[];
 
 s.map(// do something
 >s.map(// do something    function () { }) : void[]
->s.map : { <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
+>s.map : { <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
 >s : string[]
->map : { <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
+>map : { <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
 
     function () { });
->function () { } : (this: undefined) => void
+>function () { } : (this: void) => void
 
diff --git a/tests/baselines/reference/contextualSignatureInstantiation3.types b/tests/baselines/reference/contextualSignatureInstantiation3.types
index dcb7284ceaa..60ad7c31bf6 100644
--- a/tests/baselines/reference/contextualSignatureInstantiation3.types
+++ b/tests/baselines/reference/contextualSignatureInstantiation3.types
@@ -13,9 +13,9 @@ function map<T, U>(items: T[], f: (x: T) => U): U[]{
 
     return items.map(f);
 >items.map(f) : U[]
->items.map : { <U>(this: [T, T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U, U, U, U]; <U>(this: [T, T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [T, T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U, U]; <U>(this: [T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U]; <U>(this: [T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U]; <U>(this: [T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): U[]; <U>(callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): U[]; }
+>items.map : { <U>(this: [T, T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U, U, U, U]; <U>(this: [T, T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [T, T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U, U]; <U>(this: [T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U]; <U>(this: [T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U]; <U>(this: [T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: T, index: number, array: T[]) => U): U[]; <U>(callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): U[]; }
 >items : T[]
->map : { <U>(this: [T, T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U, U, U, U]; <U>(this: [T, T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [T, T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U, U]; <U>(this: [T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U]; <U>(this: [T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U]; <U>(this: [T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): U[]; <U>(callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): U[]; }
+>map : { <U>(this: [T, T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U, U, U, U]; <U>(this: [T, T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [T, T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U, U]; <U>(this: [T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U]; <U>(this: [T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U]; <U>(this: [T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: T, index: number, array: T[]) => U): U[]; <U>(callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): U[]; }
 >f : (x: T) => U
 }
 
@@ -54,9 +54,9 @@ var v1: number[];
 var v1 = xs.map(identity);      // Error if not number[]
 >v1 : number[]
 >xs.map(identity) : number[]
->xs.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>xs.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
 >xs : number[]
->map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
 >identity : <T>(x: T) => T
 
 var v1 = map(xs, identity);     // Error if not number[]
@@ -72,9 +72,9 @@ var v2: number[][];
 var v2 = xs.map(singleton);     // Error if not number[][]
 >v2 : number[][]
 >xs.map(singleton) : number[][]
->xs.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>xs.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
 >xs : number[]
->map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
 >singleton : <T>(x: T) => T[]
 
 var v2 = map(xs, singleton);    // Error if not number[][]
diff --git a/tests/baselines/reference/contextuallyTypedIife.types b/tests/baselines/reference/contextuallyTypedIife.types
index b8c59a618b8..04ddbf50fde 100644
--- a/tests/baselines/reference/contextuallyTypedIife.types
+++ b/tests/baselines/reference/contextuallyTypedIife.types
@@ -105,10 +105,10 @@
 >(...numbers) => numbers.every(n => n > 0) : (...numbers: number[]) => boolean
 >numbers : number[]
 >numbers.every(n => n > 0) : boolean
->numbers.every : { (callbackfn: (this: undefined, value: number, index: number, array: number[]) => boolean): boolean; (callbackfn: (this: undefined, value: number, index: number, array: number[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: number, index: number, array: number[]) => boolean, thisArg: Z): boolean; }
+>numbers.every : { (callbackfn: (this: void, value: number, index: number, array: number[]) => boolean): boolean; (callbackfn: (this: void, value: number, index: number, array: number[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: number, index: number, array: number[]) => boolean, thisArg: Z): boolean; }
 >numbers : number[]
->every : { (callbackfn: (this: undefined, value: number, index: number, array: number[]) => boolean): boolean; (callbackfn: (this: undefined, value: number, index: number, array: number[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: number, index: number, array: number[]) => boolean, thisArg: Z): boolean; }
->n => n > 0 : (this: undefined, n: number) => boolean
+>every : { (callbackfn: (this: void, value: number, index: number, array: number[]) => boolean): boolean; (callbackfn: (this: void, value: number, index: number, array: number[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: number, index: number, array: number[]) => boolean, thisArg: Z): boolean; }
+>n => n > 0 : (this: void, n: number) => boolean
 >n : number
 >n > 0 : boolean
 >n : number
@@ -123,10 +123,10 @@
 >(...mixed) => mixed.every(n => !!n) : (...mixed: (string | number)[]) => boolean
 >mixed : (string | number)[]
 >mixed.every(n => !!n) : boolean
->mixed.every : { (callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => boolean): boolean; (callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => boolean, thisArg: Z): boolean; }
+>mixed.every : { (callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => boolean): boolean; (callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => boolean, thisArg: Z): boolean; }
 >mixed : (string | number)[]
->every : { (callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => boolean): boolean; (callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => boolean, thisArg: Z): boolean; }
->n => !!n : (this: undefined, n: string | number) => boolean
+>every : { (callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => boolean): boolean; (callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => boolean, thisArg: Z): boolean; }
+>n => !!n : (this: void, n: string | number) => boolean
 >n : string | number
 >!!n : boolean
 >!n : boolean
@@ -141,10 +141,10 @@
 >(...noNumbers) => noNumbers.some(n => n > 0) : (...noNumbers: any[]) => boolean
 >noNumbers : any[]
 >noNumbers.some(n => n > 0) : boolean
->noNumbers.some : { (callbackfn: (this: undefined, value: any, index: number, array: any[]) => boolean): boolean; (callbackfn: (this: undefined, value: any, index: number, array: any[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: any, index: number, array: any[]) => boolean, thisArg: Z): boolean; }
+>noNumbers.some : { (callbackfn: (this: void, value: any, index: number, array: any[]) => boolean): boolean; (callbackfn: (this: void, value: any, index: number, array: any[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: any, index: number, array: any[]) => boolean, thisArg: Z): boolean; }
 >noNumbers : any[]
->some : { (callbackfn: (this: undefined, value: any, index: number, array: any[]) => boolean): boolean; (callbackfn: (this: undefined, value: any, index: number, array: any[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: any, index: number, array: any[]) => boolean, thisArg: Z): boolean; }
->n => n > 0 : (this: undefined, n: any) => boolean
+>some : { (callbackfn: (this: void, value: any, index: number, array: any[]) => boolean): boolean; (callbackfn: (this: void, value: any, index: number, array: any[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: any, index: number, array: any[]) => boolean, thisArg: Z): boolean; }
+>n => n > 0 : (this: void, n: any) => boolean
 >n : any
 >n > 0 : boolean
 >n : any
@@ -160,10 +160,10 @@
 >first : number
 >[] : undefined[]
 >rest.map(n => n > 0) : boolean[]
->rest.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>rest.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
 >rest : number[]
->map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
->n => n > 0 : (this: undefined, n: number) => boolean
+>map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>n => n > 0 : (this: void, n: number) => boolean
 >n : number
 >n > 0 : boolean
 >n : number
diff --git a/tests/baselines/reference/controlFlowDestructuringParameters.types b/tests/baselines/reference/controlFlowDestructuringParameters.types
index d1adadfee17..7fdb1eded01 100644
--- a/tests/baselines/reference/controlFlowDestructuringParameters.types
+++ b/tests/baselines/reference/controlFlowDestructuringParameters.types
@@ -4,15 +4,15 @@
 
 [{ x: 1 }].map(
 >[{ x: 1 }].map(  ({ x }) => x) : number[]
->[{ x: 1 }].map : { <U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: undefined, value: { x: number; }, index: number, array: { x: number; }[]) => U): [U, U, U, U, U]; <U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: undefined, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: Z, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: undefined, value: { x: number; }, index: number, array: { x: number; }[]) => U): [U, U, U, U]; <U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: undefined, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: Z, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [{ x: number; }, { x: number; }, { x: number; }], callbackfn: (this: undefined, value: { x: number; }, index: number, array: { x: number; }[]) => U): [U, U, U]; <U>(this: [{ x: number; }, { x: number; }, { x: number; }], callbackfn: (this: undefined, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [{ x: number; }, { x: number; }, { x: number; }], callbackfn: (this: Z, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: Z): [U, U, U]; <U>(this: [{ x: number; }, { x: number; }], callbackfn: (this: undefined, value: { x: number; }, index: number, array: { x: number; }[]) => U): [U, U]; <U>(this: [{ x: number; }, { x: number; }], callbackfn: (this: undefined, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [{ x: number; }, { x: number; }], callbackfn: (this: Z, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: { x: number; }, index: number, array: { x: number; }[]) => U): U[]; <U>(callbackfn: (this: undefined, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: Z): U[]; }
+>[{ x: 1 }].map : { <U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: void, value: { x: number; }, index: number, array: { x: number; }[]) => U): [U, U, U, U, U]; <U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: void, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: Z, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: void, value: { x: number; }, index: number, array: { x: number; }[]) => U): [U, U, U, U]; <U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: void, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: Z, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [{ x: number; }, { x: number; }, { x: number; }], callbackfn: (this: void, value: { x: number; }, index: number, array: { x: number; }[]) => U): [U, U, U]; <U>(this: [{ x: number; }, { x: number; }, { x: number; }], callbackfn: (this: void, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [{ x: number; }, { x: number; }, { x: number; }], callbackfn: (this: Z, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: Z): [U, U, U]; <U>(this: [{ x: number; }, { x: number; }], callbackfn: (this: void, value: { x: number; }, index: number, array: { x: number; }[]) => U): [U, U]; <U>(this: [{ x: number; }, { x: number; }], callbackfn: (this: void, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [{ x: number; }, { x: number; }], callbackfn: (this: Z, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: { x: number; }, index: number, array: { x: number; }[]) => U): U[]; <U>(callbackfn: (this: void, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: Z): U[]; }
 >[{ x: 1 }] : { x: number; }[]
 >{ x: 1 } : { x: number; }
 >x : number
 >1 : 1
->map : { <U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: undefined, value: { x: number; }, index: number, array: { x: number; }[]) => U): [U, U, U, U, U]; <U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: undefined, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: Z, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: undefined, value: { x: number; }, index: number, array: { x: number; }[]) => U): [U, U, U, U]; <U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: undefined, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: Z, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [{ x: number; }, { x: number; }, { x: number; }], callbackfn: (this: undefined, value: { x: number; }, index: number, array: { x: number; }[]) => U): [U, U, U]; <U>(this: [{ x: number; }, { x: number; }, { x: number; }], callbackfn: (this: undefined, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [{ x: number; }, { x: number; }, { x: number; }], callbackfn: (this: Z, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: Z): [U, U, U]; <U>(this: [{ x: number; }, { x: number; }], callbackfn: (this: undefined, value: { x: number; }, index: number, array: { x: number; }[]) => U): [U, U]; <U>(this: [{ x: number; }, { x: number; }], callbackfn: (this: undefined, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [{ x: number; }, { x: number; }], callbackfn: (this: Z, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: { x: number; }, index: number, array: { x: number; }[]) => U): U[]; <U>(callbackfn: (this: undefined, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: Z): U[]; }
+>map : { <U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: void, value: { x: number; }, index: number, array: { x: number; }[]) => U): [U, U, U, U, U]; <U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: void, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: Z, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: void, value: { x: number; }, index: number, array: { x: number; }[]) => U): [U, U, U, U]; <U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: void, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [{ x: number; }, { x: number; }, { x: number; }, { x: number; }], callbackfn: (this: Z, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [{ x: number; }, { x: number; }, { x: number; }], callbackfn: (this: void, value: { x: number; }, index: number, array: { x: number; }[]) => U): [U, U, U]; <U>(this: [{ x: number; }, { x: number; }, { x: number; }], callbackfn: (this: void, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [{ x: number; }, { x: number; }, { x: number; }], callbackfn: (this: Z, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: Z): [U, U, U]; <U>(this: [{ x: number; }, { x: number; }], callbackfn: (this: void, value: { x: number; }, index: number, array: { x: number; }[]) => U): [U, U]; <U>(this: [{ x: number; }, { x: number; }], callbackfn: (this: void, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [{ x: number; }, { x: number; }], callbackfn: (this: Z, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: { x: number; }, index: number, array: { x: number; }[]) => U): U[]; <U>(callbackfn: (this: void, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: { x: number; }, index: number, array: { x: number; }[]) => U, thisArg: Z): U[]; }
 
   ({ x }) => x
->({ x }) => x : (this: undefined, {x}: { x: number; }) => number
+>({ x }) => x : (this: void, {x}: { x: number; }) => number
 >x : number
 >x : number
 
diff --git a/tests/baselines/reference/declarationEmitPromise.types b/tests/baselines/reference/declarationEmitPromise.types
index 70012094bf3..9fafbd0cbd6 100644
--- a/tests/baselines/reference/declarationEmitPromise.types
+++ b/tests/baselines/reference/declarationEmitPromise.types
@@ -44,15 +44,15 @@ export async function runSampleWorks<A, B, C, D, E>(
 >bluebird : typeof bluebird
 >all : bluebird<any>[]
 >[a, b, c, d, e].filter(el => !!el) : bluebird<A>[]
->[a, b, c, d, e].filter : { (callbackfn: (this: undefined, value: bluebird<A>, index: number, array: bluebird<A>[]) => any): bluebird<A>[]; (callbackfn: (this: undefined, value: bluebird<A>, index: number, array: bluebird<A>[]) => any, thisArg: undefined): bluebird<A>[]; <Z>(callbackfn: (this: Z, value: bluebird<A>, index: number, array: bluebird<A>[]) => any, thisArg: Z): bluebird<A>[]; }
+>[a, b, c, d, e].filter : { (callbackfn: (this: void, value: bluebird<A>, index: number, array: bluebird<A>[]) => any): bluebird<A>[]; (callbackfn: (this: void, value: bluebird<A>, index: number, array: bluebird<A>[]) => any, thisArg: undefined): bluebird<A>[]; <Z>(callbackfn: (this: Z, value: bluebird<A>, index: number, array: bluebird<A>[]) => any, thisArg: Z): bluebird<A>[]; }
 >[a, b, c, d, e] : bluebird<A>[]
 >a : bluebird<A>
 >b : bluebird<B>
 >c : bluebird<C>
 >d : bluebird<D>
 >e : bluebird<E>
->filter : { (callbackfn: (this: undefined, value: bluebird<A>, index: number, array: bluebird<A>[]) => any): bluebird<A>[]; (callbackfn: (this: undefined, value: bluebird<A>, index: number, array: bluebird<A>[]) => any, thisArg: undefined): bluebird<A>[]; <Z>(callbackfn: (this: Z, value: bluebird<A>, index: number, array: bluebird<A>[]) => any, thisArg: Z): bluebird<A>[]; }
->el => !!el : (this: undefined, el: bluebird<A>) => boolean
+>filter : { (callbackfn: (this: void, value: bluebird<A>, index: number, array: bluebird<A>[]) => any): bluebird<A>[]; (callbackfn: (this: void, value: bluebird<A>, index: number, array: bluebird<A>[]) => any, thisArg: undefined): bluebird<A>[]; <Z>(callbackfn: (this: Z, value: bluebird<A>, index: number, array: bluebird<A>[]) => any, thisArg: Z): bluebird<A>[]; }
+>el => !!el : (this: void, el: bluebird<A>) => boolean
 >el : bluebird<A>
 >!!el : boolean
 >!el : boolean
@@ -129,15 +129,15 @@ export async function runSampleBreaks<A, B, C, D, E>(
 >bluebird : typeof bluebird
 >all : bluebird<any>[]
 >[a, b, c, d, e].filter(el => !!el) : bluebird<A>[]
->[a, b, c, d, e].filter : { (callbackfn: (this: undefined, value: bluebird<A>, index: number, array: bluebird<A>[]) => any): bluebird<A>[]; (callbackfn: (this: undefined, value: bluebird<A>, index: number, array: bluebird<A>[]) => any, thisArg: undefined): bluebird<A>[]; <Z>(callbackfn: (this: Z, value: bluebird<A>, index: number, array: bluebird<A>[]) => any, thisArg: Z): bluebird<A>[]; }
+>[a, b, c, d, e].filter : { (callbackfn: (this: void, value: bluebird<A>, index: number, array: bluebird<A>[]) => any): bluebird<A>[]; (callbackfn: (this: void, value: bluebird<A>, index: number, array: bluebird<A>[]) => any, thisArg: undefined): bluebird<A>[]; <Z>(callbackfn: (this: Z, value: bluebird<A>, index: number, array: bluebird<A>[]) => any, thisArg: Z): bluebird<A>[]; }
 >[a, b, c, d, e] : bluebird<A>[]
 >a : bluebird<A>
 >b : bluebird<B>
 >c : bluebird<C>
 >d : bluebird<D>
 >e : bluebird<E>
->filter : { (callbackfn: (this: undefined, value: bluebird<A>, index: number, array: bluebird<A>[]) => any): bluebird<A>[]; (callbackfn: (this: undefined, value: bluebird<A>, index: number, array: bluebird<A>[]) => any, thisArg: undefined): bluebird<A>[]; <Z>(callbackfn: (this: Z, value: bluebird<A>, index: number, array: bluebird<A>[]) => any, thisArg: Z): bluebird<A>[]; }
->el => !!el : (this: undefined, el: bluebird<A>) => boolean
+>filter : { (callbackfn: (this: void, value: bluebird<A>, index: number, array: bluebird<A>[]) => any): bluebird<A>[]; (callbackfn: (this: void, value: bluebird<A>, index: number, array: bluebird<A>[]) => any, thisArg: undefined): bluebird<A>[]; <Z>(callbackfn: (this: Z, value: bluebird<A>, index: number, array: bluebird<A>[]) => any, thisArg: Z): bluebird<A>[]; }
+>el => !!el : (this: void, el: bluebird<A>) => boolean
 >el : bluebird<A>
 >!!el : boolean
 >!el : boolean
diff --git a/tests/baselines/reference/enumIndexer.types b/tests/baselines/reference/enumIndexer.types
index 981ad5c8c81..eb4b4e18e76 100644
--- a/tests/baselines/reference/enumIndexer.types
+++ b/tests/baselines/reference/enumIndexer.types
@@ -25,10 +25,10 @@ var enumValue = MyEnumType.foo;
 var x = _arr.map(o => MyEnumType[o.key] === enumValue); // these are not same type
 >x : boolean[]
 >_arr.map(o => MyEnumType[o.key] === enumValue) : boolean[]
->_arr.map : { <U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: undefined, value: { key: string; }, index: number, array: { key: string; }[]) => U): [U, U, U, U, U]; <U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: undefined, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: Z, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: undefined, value: { key: string; }, index: number, array: { key: string; }[]) => U): [U, U, U, U]; <U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: undefined, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: Z, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [{ key: string; }, { key: string; }, { key: string; }], callbackfn: (this: undefined, value: { key: string; }, index: number, array: { key: string; }[]) => U): [U, U, U]; <U>(this: [{ key: string; }, { key: string; }, { key: string; }], callbackfn: (this: undefined, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [{ key: string; }, { key: string; }, { key: string; }], callbackfn: (this: Z, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: Z): [U, U, U]; <U>(this: [{ key: string; }, { key: string; }], callbackfn: (this: undefined, value: { key: string; }, index: number, array: { key: string; }[]) => U): [U, U]; <U>(this: [{ key: string; }, { key: string; }], callbackfn: (this: undefined, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [{ key: string; }, { key: string; }], callbackfn: (this: Z, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: { key: string; }, index: number, array: { key: string; }[]) => U): U[]; <U>(callbackfn: (this: undefined, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: Z): U[]; }
+>_arr.map : { <U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: void, value: { key: string; }, index: number, array: { key: string; }[]) => U): [U, U, U, U, U]; <U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: void, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: Z, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: void, value: { key: string; }, index: number, array: { key: string; }[]) => U): [U, U, U, U]; <U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: void, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: Z, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [{ key: string; }, { key: string; }, { key: string; }], callbackfn: (this: void, value: { key: string; }, index: number, array: { key: string; }[]) => U): [U, U, U]; <U>(this: [{ key: string; }, { key: string; }, { key: string; }], callbackfn: (this: void, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [{ key: string; }, { key: string; }, { key: string; }], callbackfn: (this: Z, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: Z): [U, U, U]; <U>(this: [{ key: string; }, { key: string; }], callbackfn: (this: void, value: { key: string; }, index: number, array: { key: string; }[]) => U): [U, U]; <U>(this: [{ key: string; }, { key: string; }], callbackfn: (this: void, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [{ key: string; }, { key: string; }], callbackfn: (this: Z, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: { key: string; }, index: number, array: { key: string; }[]) => U): U[]; <U>(callbackfn: (this: void, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: Z): U[]; }
 >_arr : { key: string; }[]
->map : { <U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: undefined, value: { key: string; }, index: number, array: { key: string; }[]) => U): [U, U, U, U, U]; <U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: undefined, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: Z, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: undefined, value: { key: string; }, index: number, array: { key: string; }[]) => U): [U, U, U, U]; <U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: undefined, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: Z, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [{ key: string; }, { key: string; }, { key: string; }], callbackfn: (this: undefined, value: { key: string; }, index: number, array: { key: string; }[]) => U): [U, U, U]; <U>(this: [{ key: string; }, { key: string; }, { key: string; }], callbackfn: (this: undefined, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [{ key: string; }, { key: string; }, { key: string; }], callbackfn: (this: Z, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: Z): [U, U, U]; <U>(this: [{ key: string; }, { key: string; }], callbackfn: (this: undefined, value: { key: string; }, index: number, array: { key: string; }[]) => U): [U, U]; <U>(this: [{ key: string; }, { key: string; }], callbackfn: (this: undefined, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [{ key: string; }, { key: string; }], callbackfn: (this: Z, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: { key: string; }, index: number, array: { key: string; }[]) => U): U[]; <U>(callbackfn: (this: undefined, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: Z): U[]; }
->o => MyEnumType[o.key] === enumValue : (this: undefined, o: { key: string; }) => boolean
+>map : { <U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: void, value: { key: string; }, index: number, array: { key: string; }[]) => U): [U, U, U, U, U]; <U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: void, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: Z, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: void, value: { key: string; }, index: number, array: { key: string; }[]) => U): [U, U, U, U]; <U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: void, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [{ key: string; }, { key: string; }, { key: string; }, { key: string; }], callbackfn: (this: Z, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [{ key: string; }, { key: string; }, { key: string; }], callbackfn: (this: void, value: { key: string; }, index: number, array: { key: string; }[]) => U): [U, U, U]; <U>(this: [{ key: string; }, { key: string; }, { key: string; }], callbackfn: (this: void, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [{ key: string; }, { key: string; }, { key: string; }], callbackfn: (this: Z, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: Z): [U, U, U]; <U>(this: [{ key: string; }, { key: string; }], callbackfn: (this: void, value: { key: string; }, index: number, array: { key: string; }[]) => U): [U, U]; <U>(this: [{ key: string; }, { key: string; }], callbackfn: (this: void, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [{ key: string; }, { key: string; }], callbackfn: (this: Z, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: { key: string; }, index: number, array: { key: string; }[]) => U): U[]; <U>(callbackfn: (this: void, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: { key: string; }, index: number, array: { key: string; }[]) => U, thisArg: Z): U[]; }
+>o => MyEnumType[o.key] === enumValue : (this: void, o: { key: string; }) => boolean
 >o : { key: string; }
 >MyEnumType[o.key] === enumValue : boolean
 >MyEnumType[o.key] : any
diff --git a/tests/baselines/reference/genericArray1.types b/tests/baselines/reference/genericArray1.types
index b893d9778fc..bf5d55eb569 100644
--- a/tests/baselines/reference/genericArray1.types
+++ b/tests/baselines/reference/genericArray1.types
@@ -14,13 +14,13 @@ interface String{
 var lengths = ["a", "b", "c"].map(x => x.length);
 >lengths : number[]
 >["a", "b", "c"].map(x => x.length) : number[]
->["a", "b", "c"].map : { <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
+>["a", "b", "c"].map : { <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
 >["a", "b", "c"] : string[]
 >"a" : "a"
 >"b" : "b"
 >"c" : "c"
->map : { <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
->x => x.length : (this: undefined, x: string) => number
+>map : { <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
+>x => x.length : (this: void, x: string) => number
 >x : string
 >x.length : number
 >x : string
diff --git a/tests/baselines/reference/genericInference1.types b/tests/baselines/reference/genericInference1.types
index 64ff2c399cd..8995e07c825 100644
--- a/tests/baselines/reference/genericInference1.types
+++ b/tests/baselines/reference/genericInference1.types
@@ -1,13 +1,13 @@
 === tests/cases/compiler/genericInference1.ts ===
 ['a', 'b', 'c'].map(x => x.length);
 >['a', 'b', 'c'].map(x => x.length) : number[]
->['a', 'b', 'c'].map : { <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
+>['a', 'b', 'c'].map : { <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
 >['a', 'b', 'c'] : string[]
 >'a' : "a"
 >'b' : "b"
 >'c' : "c"
->map : { <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
->x => x.length : (this: undefined, x: string) => number
+>map : { <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
+>x => x.length : (this: void, x: string) => number
 >x : string
 >x.length : number
 >x : string
diff --git a/tests/baselines/reference/genericMethodOverspecialization.types b/tests/baselines/reference/genericMethodOverspecialization.types
index 36b710b742c..17f3e0dddd7 100644
--- a/tests/baselines/reference/genericMethodOverspecialization.types
+++ b/tests/baselines/reference/genericMethodOverspecialization.types
@@ -34,10 +34,10 @@ interface Document {
 var elements = names.map(function (name) {
 >elements : HTMLElement[]
 >names.map(function (name) {    return document.getElementById(name);}) : HTMLElement[]
->names.map : { <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
+>names.map : { <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
 >names : string[]
->map : { <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
->function (name) {    return document.getElementById(name);} : (this: undefined, name: string) => HTMLElement
+>map : { <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
+>function (name) {    return document.getElementById(name);} : (this: void, name: string) => HTMLElement
 >name : string
 
     return document.getElementById(name);
@@ -53,10 +53,10 @@ var elements = names.map(function (name) {
 var xxx = elements.filter(function (e) {
 >xxx : HTMLElement[]
 >elements.filter(function (e) {    return !e.isDisabled;}) : HTMLElement[]
->elements.filter : { (callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => any): HTMLElement[]; (callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => any, thisArg: undefined): HTMLElement[]; <Z>(callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => any, thisArg: Z): HTMLElement[]; }
+>elements.filter : { (callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => any): HTMLElement[]; (callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => any, thisArg: undefined): HTMLElement[]; <Z>(callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => any, thisArg: Z): HTMLElement[]; }
 >elements : HTMLElement[]
->filter : { (callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => any): HTMLElement[]; (callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => any, thisArg: undefined): HTMLElement[]; <Z>(callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => any, thisArg: Z): HTMLElement[]; }
->function (e) {    return !e.isDisabled;} : (this: undefined, e: HTMLElement) => boolean
+>filter : { (callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => any): HTMLElement[]; (callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => any, thisArg: undefined): HTMLElement[]; <Z>(callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => any, thisArg: Z): HTMLElement[]; }
+>function (e) {    return !e.isDisabled;} : (this: void, e: HTMLElement) => boolean
 >e : HTMLElement
 
     return !e.isDisabled;
@@ -70,10 +70,10 @@ var xxx = elements.filter(function (e) {
 var widths:number[] = elements.map(function (e) { // should not error
 >widths : number[]
 >elements.map(function (e) { // should not error    return e.clientWidth;}) : number[]
->elements.map : { <U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => U): [U, U, U, U, U]; <U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => U): [U, U, U, U]; <U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => U): [U, U, U]; <U>(this: [HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: Z): [U, U, U]; <U>(this: [HTMLElement, HTMLElement], callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => U): [U, U]; <U>(this: [HTMLElement, HTMLElement], callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [HTMLElement, HTMLElement], callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => U): U[]; <U>(callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: Z): U[]; }
+>elements.map : { <U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => U): [U, U, U, U, U]; <U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => U): [U, U, U, U]; <U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => U): [U, U, U]; <U>(this: [HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: Z): [U, U, U]; <U>(this: [HTMLElement, HTMLElement], callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => U): [U, U]; <U>(this: [HTMLElement, HTMLElement], callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [HTMLElement, HTMLElement], callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => U): U[]; <U>(callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: Z): U[]; }
 >elements : HTMLElement[]
->map : { <U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => U): [U, U, U, U, U]; <U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => U): [U, U, U, U]; <U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => U): [U, U, U]; <U>(this: [HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: Z): [U, U, U]; <U>(this: [HTMLElement, HTMLElement], callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => U): [U, U]; <U>(this: [HTMLElement, HTMLElement], callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [HTMLElement, HTMLElement], callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => U): U[]; <U>(callbackfn: (this: undefined, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: Z): U[]; }
->function (e) { // should not error    return e.clientWidth;} : (this: undefined, e: HTMLElement) => number
+>map : { <U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => U): [U, U, U, U, U]; <U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => U): [U, U, U, U]; <U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [HTMLElement, HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => U): [U, U, U]; <U>(this: [HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [HTMLElement, HTMLElement, HTMLElement], callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: Z): [U, U, U]; <U>(this: [HTMLElement, HTMLElement], callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => U): [U, U]; <U>(this: [HTMLElement, HTMLElement], callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [HTMLElement, HTMLElement], callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => U): U[]; <U>(callbackfn: (this: void, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: HTMLElement, index: number, array: HTMLElement[]) => U, thisArg: Z): U[]; }
+>function (e) { // should not error    return e.clientWidth;} : (this: void, e: HTMLElement) => number
 >e : HTMLElement
 
     return e.clientWidth;
diff --git a/tests/baselines/reference/implementArrayInterface.errors.txt b/tests/baselines/reference/implementArrayInterface.errors.txt
index 139bb42105d..61c4440fa3a 100644
--- a/tests/baselines/reference/implementArrayInterface.errors.txt
+++ b/tests/baselines/reference/implementArrayInterface.errors.txt
@@ -1,6 +1,6 @@
 tests/cases/compiler/implementArrayInterface.ts(1,15): error TS2420: Class 'MyArray<T>' incorrectly implements interface 'T[]'.
   Types of property 'map' are incompatible.
-    Type '<U>(callbackfn: (value: T, index: number, array: T[]) => U, thisArg?: any) => U[]' is not assignable to type '{ <U>(this: [T, T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U, U, U, U]; <U>(this: [T, T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [T, T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U, U]; <U>(this: [T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U]; <U>(this: [T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U]; <U>(this: [T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): U[]; <U>(callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): U[]; }'.
+    Type '<U>(callbackfn: (value: T, index: number, array: T[]) => U, thisArg?: any) => U[]' is not assignable to type '{ <U>(this: [T, T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U, U, U, U]; <U>(this: [T, T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [T, T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U, U]; <U>(this: [T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U]; <U>(this: [T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U]; <U>(this: [T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: T, index: number, array: T[]) => U): U[]; <U>(callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): U[]; }'.
       Type 'any[]' is not assignable to type '[any, any, any, any, any]'.
         Property '0' is missing in type 'any[]'.
 
@@ -10,7 +10,7 @@ tests/cases/compiler/implementArrayInterface.ts(1,15): error TS2420: Class 'MyAr
                   ~~~~~~~
 !!! error TS2420: Class 'MyArray<T>' incorrectly implements interface 'T[]'.
 !!! error TS2420:   Types of property 'map' are incompatible.
-!!! error TS2420:     Type '<U>(callbackfn: (value: T, index: number, array: T[]) => U, thisArg?: any) => U[]' is not assignable to type '{ <U>(this: [T, T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U, U, U, U]; <U>(this: [T, T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [T, T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U, U]; <U>(this: [T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U]; <U>(this: [T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U]; <U>(this: [T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): U[]; <U>(callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): U[]; }'.
+!!! error TS2420:     Type '<U>(callbackfn: (value: T, index: number, array: T[]) => U, thisArg?: any) => U[]' is not assignable to type '{ <U>(this: [T, T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U, U, U, U]; <U>(this: [T, T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [T, T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U, U]; <U>(this: [T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U]; <U>(this: [T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U]; <U>(this: [T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: T, index: number, array: T[]) => U): U[]; <U>(callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): U[]; }'.
 !!! error TS2420:       Type 'any[]' is not assignable to type '[any, any, any, any, any]'.
 !!! error TS2420:         Property '0' is missing in type 'any[]'.
         toString(): string;
diff --git a/tests/baselines/reference/inferenceLimit.types b/tests/baselines/reference/inferenceLimit.types
index 9f2f11d988f..c7cb6d8333e 100644
--- a/tests/baselines/reference/inferenceLimit.types
+++ b/tests/baselines/reference/inferenceLimit.types
@@ -84,9 +84,9 @@ export class BrokenClass {
 >Promise : PromiseConstructor
 >all : { <T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike<T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>, T8 | PromiseLike<T8>, T9 | PromiseLike<T9>, T10 | PromiseLike<T10>]): Promise<[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10]>; <T1, T2, T3, T4, T5, T6, T7, T8, T9>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike<T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>, T8 | PromiseLike<T8>, T9 | PromiseLike<T9>]): Promise<[T1, T2, T3, T4, T5, T6, T7, T8, T9]>; <T1, T2, T3, T4, T5, T6, T7, T8>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike<T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>, T8 | PromiseLike<T8>]): Promise<[T1, T2, T3, T4, T5, T6, T7, T8]>; <T1, T2, T3, T4, T5, T6, T7>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike<T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>]): Promise<[T1, T2, T3, T4, T5, T6, T7]>; <T1, T2, T3, T4, T5, T6>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike<T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>]): Promise<[T1, T2, T3, T4, T5, T6]>; <T1, T2, T3, T4, T5>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike<T4>, T5 | PromiseLike<T5>]): Promise<[T1, T2, T3, T4, T5]>; <T1, T2, T3, T4>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike<T4>]): Promise<[T1, T2, T3, T4]>; <T1, T2, T3>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>]): Promise<[T1, T2, T3]>; <T1, T2>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>]): Promise<[T1, T2]>; <T>(values: (T | PromiseLike<T>)[]): Promise<T[]>; <TAll>(values: Iterable<TAll | PromiseLike<TAll>>): Promise<TAll[]>; }
 >result.map(populateItems) : Promise<{}>[]
->result.map : { <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: undefined, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U): [U, U, U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: undefined, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: Z, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: undefined, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U): [U, U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: undefined, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: Z, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: undefined, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U): [U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: undefined, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: Z, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: Z): [U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel], callbackfn: (this: undefined, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U): [U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel], callbackfn: (this: undefined, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [MyModule.MyModel, MyModule.MyModel], callbackfn: (this: Z, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U): U[]; <U>(callbackfn: (this: undefined, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: Z): U[]; }
+>result.map : { <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: void, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U): [U, U, U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: void, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: Z, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: void, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U): [U, U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: void, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: Z, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: void, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U): [U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: void, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: Z, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: Z): [U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel], callbackfn: (this: void, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U): [U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel], callbackfn: (this: void, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [MyModule.MyModel, MyModule.MyModel], callbackfn: (this: Z, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U): U[]; <U>(callbackfn: (this: void, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: Z): U[]; }
 >result : MyModule.MyModel[]
->map : { <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: undefined, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U): [U, U, U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: undefined, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: Z, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: undefined, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U): [U, U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: undefined, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: Z, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: undefined, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U): [U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: undefined, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: Z, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: Z): [U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel], callbackfn: (this: undefined, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U): [U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel], callbackfn: (this: undefined, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [MyModule.MyModel, MyModule.MyModel], callbackfn: (this: Z, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U): U[]; <U>(callbackfn: (this: undefined, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: Z): U[]; }
+>map : { <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: void, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U): [U, U, U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: void, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: Z, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: void, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U): [U, U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: void, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: Z, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: void, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U): [U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: void, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [MyModule.MyModel, MyModule.MyModel, MyModule.MyModel], callbackfn: (this: Z, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: Z): [U, U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel], callbackfn: (this: void, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U): [U, U]; <U>(this: [MyModule.MyModel, MyModule.MyModel], callbackfn: (this: void, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [MyModule.MyModel, MyModule.MyModel], callbackfn: (this: Z, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U): U[]; <U>(callbackfn: (this: void, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: MyModule.MyModel, index: number, array: MyModule.MyModel[]) => U, thisArg: Z): U[]; }
 >populateItems : (order: any) => Promise<{}>
 
       .then((orders: Array<MyModule.MyModel>) => {
diff --git a/tests/baselines/reference/inferentialTypingWithFunctionType2.types b/tests/baselines/reference/inferentialTypingWithFunctionType2.types
index 55caace2c2c..90c84817922 100644
--- a/tests/baselines/reference/inferentialTypingWithFunctionType2.types
+++ b/tests/baselines/reference/inferentialTypingWithFunctionType2.types
@@ -13,12 +13,12 @@ var x = [1, 2, 3].map(identity)[0];
 >x : number
 >[1, 2, 3].map(identity)[0] : number
 >[1, 2, 3].map(identity) : number[]
->[1, 2, 3].map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>[1, 2, 3].map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
 >[1, 2, 3] : number[]
 >1 : 1
 >2 : 2
 >3 : 3
->map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
 >identity : <A>(a: A) => A
 >0 : 0
 
diff --git a/tests/baselines/reference/keyofAndIndexedAccess.types b/tests/baselines/reference/keyofAndIndexedAccess.types
index 19ecac10188..a9698a47bd2 100644
--- a/tests/baselines/reference/keyofAndIndexedAccess.types
+++ b/tests/baselines/reference/keyofAndIndexedAccess.types
@@ -522,10 +522,10 @@ function pluck<T, K extends keyof T>(array: T[], key: K) {
 
     return array.map(x => x[key]);
 >array.map(x => x[key]) : T[K][]
->array.map : { <U>(this: [T, T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U, U, U, U]; <U>(this: [T, T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [T, T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U, U]; <U>(this: [T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U]; <U>(this: [T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U]; <U>(this: [T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): U[]; <U>(callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): U[]; }
+>array.map : { <U>(this: [T, T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U, U, U, U]; <U>(this: [T, T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [T, T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U, U]; <U>(this: [T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U]; <U>(this: [T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U]; <U>(this: [T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: T, index: number, array: T[]) => U): U[]; <U>(callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): U[]; }
 >array : T[]
->map : { <U>(this: [T, T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U, U, U, U]; <U>(this: [T, T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [T, T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U, U]; <U>(this: [T, T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U]; <U>(this: [T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): [U, U]; <U>(this: [T, T], callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: T, index: number, array: T[]) => U): U[]; <U>(callbackfn: (this: undefined, value: T, index: number, array: T[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): U[]; }
->x => x[key] : (this: undefined, x: T) => T[K]
+>map : { <U>(this: [T, T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U, U, U, U]; <U>(this: [T, T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [T, T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U, U, U]; <U>(this: [T, T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [T, T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U, U]; <U>(this: [T, T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [T, T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U, U]; <U>(this: [T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U): [U, U]; <U>(this: [T, T], callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [T, T], callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: T, index: number, array: T[]) => U): U[]; <U>(callbackfn: (this: void, value: T, index: number, array: T[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: T, index: number, array: T[]) => U, thisArg: Z): U[]; }
+>x => x[key] : (this: void, x: T) => T[K]
 >x : T
 >x[key] : T[K]
 >x : T
diff --git a/tests/baselines/reference/mapOnTupleTypes01.types b/tests/baselines/reference/mapOnTupleTypes01.types
index e55edda1124..72b6a6dbae1 100644
--- a/tests/baselines/reference/mapOnTupleTypes01.types
+++ b/tests/baselines/reference/mapOnTupleTypes01.types
@@ -2,14 +2,14 @@
 export let mapOnLooseArrayLiteral = [1, 2, 3, 4].map(n => n * n);
 >mapOnLooseArrayLiteral : number[]
 >[1, 2, 3, 4].map(n => n * n) : number[]
->[1, 2, 3, 4].map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>[1, 2, 3, 4].map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
 >[1, 2, 3, 4] : number[]
 >1 : 1
 >2 : 2
 >3 : 3
 >4 : 4
->map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
->n => n * n : (this: undefined, n: number) => number
+>map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>n => n * n : (this: void, n: number) => number
 >n : number
 >n * n : number
 >n : number
@@ -25,10 +25,10 @@ let numTuple: [number] = [1];
 export let a = numTuple.map(x => x * x);
 >a : number[]
 >numTuple.map(x => x * x) : number[]
->numTuple.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>numTuple.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
 >numTuple : [number]
->map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
->x => x * x : (this: undefined, x: number) => number
+>map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>x => x * x : (this: void, x: number) => number
 >x : number
 >x * x : number
 >x : number
@@ -57,10 +57,10 @@ let numStr: [number, string] = [    100, "hello"];
 export let b = numNum.map(n => n * n);
 >b : [number, number]
 >numNum.map(n => n * n) : [number, number]
->numNum.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>numNum.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
 >numNum : [number, number]
->map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
->n => n * n : (this: undefined, n: number) => number
+>map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>n => n * n : (this: void, n: number) => number
 >n : number
 >n * n : number
 >n : number
@@ -69,10 +69,10 @@ export let b = numNum.map(n => n * n);
 export let c = strStr.map(s => s.charCodeAt(0));
 >c : [number, number]
 >strStr.map(s => s.charCodeAt(0)) : [number, number]
->strStr.map : { <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
+>strStr.map : { <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
 >strStr : [string, string]
->map : { <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
->s => s.charCodeAt(0) : (this: undefined, s: string) => number
+>map : { <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
+>s => s.charCodeAt(0) : (this: void, s: string) => number
 >s : string
 >s.charCodeAt(0) : number
 >s.charCodeAt : (index: number) => number
@@ -83,10 +83,10 @@ export let c = strStr.map(s => s.charCodeAt(0));
 export let d = numStr.map(x => x);
 >d : [string | number, string | number]
 >numStr.map(x => x) : [string | number, string | number]
->numStr.map : { <U>(this: [string | number, string | number, string | number, string | number, string | number], callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => U): [U, U, U, U, U]; <U>(this: [string | number, string | number, string | number, string | number, string | number], callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string | number, string | number, string | number, string | number, string | number], callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string | number, string | number, string | number, string | number], callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => U): [U, U, U, U]; <U>(this: [string | number, string | number, string | number, string | number], callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string | number, string | number, string | number, string | number], callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string | number, string | number, string | number], callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => U): [U, U, U]; <U>(this: [string | number, string | number, string | number], callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string | number, string | number, string | number], callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string | number, string | number], callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => U): [U, U]; <U>(this: [string | number, string | number], callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string | number, string | number], callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => U): U[]; <U>(callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => U, thisArg: Z): U[]; }
+>numStr.map : { <U>(this: [string | number, string | number, string | number, string | number, string | number], callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => U): [U, U, U, U, U]; <U>(this: [string | number, string | number, string | number, string | number, string | number], callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string | number, string | number, string | number, string | number, string | number], callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string | number, string | number, string | number, string | number], callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => U): [U, U, U, U]; <U>(this: [string | number, string | number, string | number, string | number], callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string | number, string | number, string | number, string | number], callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string | number, string | number, string | number], callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => U): [U, U, U]; <U>(this: [string | number, string | number, string | number], callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string | number, string | number, string | number], callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string | number, string | number], callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => U): [U, U]; <U>(this: [string | number, string | number], callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string | number, string | number], callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => U): U[]; <U>(callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => U, thisArg: Z): U[]; }
 >numStr : [number, string]
->map : { <U>(this: [string | number, string | number, string | number, string | number, string | number], callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => U): [U, U, U, U, U]; <U>(this: [string | number, string | number, string | number, string | number, string | number], callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string | number, string | number, string | number, string | number, string | number], callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string | number, string | number, string | number, string | number], callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => U): [U, U, U, U]; <U>(this: [string | number, string | number, string | number, string | number], callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string | number, string | number, string | number, string | number], callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string | number, string | number, string | number], callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => U): [U, U, U]; <U>(this: [string | number, string | number, string | number], callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string | number, string | number, string | number], callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string | number, string | number], callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => U): [U, U]; <U>(this: [string | number, string | number], callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string | number, string | number], callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => U): U[]; <U>(callbackfn: (this: undefined, value: string | number, index: number, array: (string | number)[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => U, thisArg: Z): U[]; }
->x => x : (this: undefined, x: string | number) => string | number
+>map : { <U>(this: [string | number, string | number, string | number, string | number, string | number], callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => U): [U, U, U, U, U]; <U>(this: [string | number, string | number, string | number, string | number, string | number], callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string | number, string | number, string | number, string | number, string | number], callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string | number, string | number, string | number, string | number], callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => U): [U, U, U, U]; <U>(this: [string | number, string | number, string | number, string | number], callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string | number, string | number, string | number, string | number], callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string | number, string | number, string | number], callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => U): [U, U, U]; <U>(this: [string | number, string | number, string | number], callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string | number, string | number, string | number], callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string | number, string | number], callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => U): [U, U]; <U>(this: [string | number, string | number], callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string | number, string | number], callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => U): U[]; <U>(callbackfn: (this: void, value: string | number, index: number, array: (string | number)[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string | number, index: number, array: (string | number)[]) => U, thisArg: Z): U[]; }
+>x => x : (this: void, x: string | number) => string | number
 >x : string | number
 >x : string | number
 
@@ -102,10 +102,10 @@ let numNumNum: [number, number, number] = [1, 2, 3];
 export let e = numNumNum.map(n => n * n);
 >e : [number, number, number]
 >numNumNum.map(n => n * n) : [number, number, number]
->numNumNum.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>numNumNum.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
 >numNumNum : [number, number, number]
->map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
->n => n * n : (this: undefined, n: number) => number
+>map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>n => n * n : (this: void, n: number) => number
 >n : number
 >n * n : number
 >n : number
@@ -124,10 +124,10 @@ let numNumNumNum: [number, number, number, number] = [1, 2, 3, 4];
 export let f = numNumNumNum.map(n => n * n);
 >f : [number, number, number, number]
 >numNumNumNum.map(n => n * n) : [number, number, number, number]
->numNumNumNum.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>numNumNumNum.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
 >numNumNumNum : [number, number, number, number]
->map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
->n => n * n : (this: undefined, n: number) => number
+>map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>n => n * n : (this: void, n: number) => number
 >n : number
 >n * n : number
 >n : number
@@ -147,10 +147,10 @@ let numNumNumNumNum: [number, number, number, number, number] = [1, 2, 3, 4, 5];
 export let g = numNumNumNumNum.map(n => n * n);
 >g : [number, number, number, number, number]
 >numNumNumNumNum.map(n => n * n) : [number, number, number, number, number]
->numNumNumNumNum.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>numNumNumNumNum.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
 >numNumNumNumNum : [number, number, number, number, number]
->map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
->n => n * n : (this: undefined, n: number) => number
+>map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>n => n * n : (this: void, n: number) => number
 >n : number
 >n * n : number
 >n : number
@@ -172,10 +172,10 @@ let numNumNumNumNumNum: [number, number, number, number, number, number] = [1, 2
 export let h = numNumNumNumNum.map(n => n * n);
 >h : [number, number, number, number, number]
 >numNumNumNumNum.map(n => n * n) : [number, number, number, number, number]
->numNumNumNumNum.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>numNumNumNumNum.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
 >numNumNumNumNum : [number, number, number, number, number]
->map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
->n => n * n : (this: undefined, n: number) => number
+>map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>n => n * n : (this: void, n: number) => number
 >n : number
 >n * n : number
 >n : number
diff --git a/tests/baselines/reference/mapOnTupleTypes02.types b/tests/baselines/reference/mapOnTupleTypes02.types
index 1a354dce354..72fbbf31b11 100644
--- a/tests/baselines/reference/mapOnTupleTypes02.types
+++ b/tests/baselines/reference/mapOnTupleTypes02.types
@@ -9,10 +9,10 @@ export function increment(point: Point) {
 
   return point.map(d => d + 1);
 >point.map(d => d + 1) : [number, number]
->point.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>point.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
 >point : [number, number]
->map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
->d => d + 1 : (this: undefined, d: number) => number
+>map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>d => d + 1 : (this: void, d: number) => number
 >d : number
 >d + 1 : number
 >d : number
diff --git a/tests/baselines/reference/modularizeLibrary_NoErrorDuplicateLibOptions1.types b/tests/baselines/reference/modularizeLibrary_NoErrorDuplicateLibOptions1.types
index 844ac1919d5..a77fcd223f4 100644
--- a/tests/baselines/reference/modularizeLibrary_NoErrorDuplicateLibOptions1.types
+++ b/tests/baselines/reference/modularizeLibrary_NoErrorDuplicateLibOptions1.types
@@ -8,9 +8,9 @@ function f(x: number, y: number, z: number) {
 
     return Array.from(arguments);
 >Array.from(arguments) : any[]
->Array.from : { <T, U>(iterable: Iterable<T>, mapfn: (this: undefined, v: T, k: number) => U): U[]; <T, U>(iterable: Iterable<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(iterable: Iterable<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(iterable: Iterable<T>): T[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
+>Array.from : { <T, U>(iterable: Iterable<T>, mapfn: (this: void, v: T, k: number) => U): U[]; <T, U>(iterable: Iterable<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(iterable: Iterable<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(iterable: Iterable<T>): T[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
 >Array : ArrayConstructor
->from : { <T, U>(iterable: Iterable<T>, mapfn: (this: undefined, v: T, k: number) => U): U[]; <T, U>(iterable: Iterable<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(iterable: Iterable<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(iterable: Iterable<T>): T[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
+>from : { <T, U>(iterable: Iterable<T>, mapfn: (this: void, v: T, k: number) => U): U[]; <T, U>(iterable: Iterable<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(iterable: Iterable<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(iterable: Iterable<T>): T[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
 >arguments : IArguments
 }
 
diff --git a/tests/baselines/reference/modularizeLibrary_NoErrorDuplicateLibOptions2.types b/tests/baselines/reference/modularizeLibrary_NoErrorDuplicateLibOptions2.types
index 708e7727ba3..6d5770659de 100644
--- a/tests/baselines/reference/modularizeLibrary_NoErrorDuplicateLibOptions2.types
+++ b/tests/baselines/reference/modularizeLibrary_NoErrorDuplicateLibOptions2.types
@@ -8,9 +8,9 @@ function f(x: number, y: number, z: number) {
 
     return Array.from(arguments);
 >Array.from(arguments) : any[]
->Array.from : { <T, U>(iterable: Iterable<T>, mapfn: (this: undefined, v: T, k: number) => U): U[]; <T, U>(iterable: Iterable<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(iterable: Iterable<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(iterable: Iterable<T>): T[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
+>Array.from : { <T, U>(iterable: Iterable<T>, mapfn: (this: void, v: T, k: number) => U): U[]; <T, U>(iterable: Iterable<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(iterable: Iterable<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(iterable: Iterable<T>): T[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
 >Array : ArrayConstructor
->from : { <T, U>(iterable: Iterable<T>, mapfn: (this: undefined, v: T, k: number) => U): U[]; <T, U>(iterable: Iterable<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(iterable: Iterable<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(iterable: Iterable<T>): T[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
+>from : { <T, U>(iterable: Iterable<T>, mapfn: (this: void, v: T, k: number) => U): U[]; <T, U>(iterable: Iterable<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(iterable: Iterable<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(iterable: Iterable<T>): T[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
 >arguments : IArguments
 }
 
diff --git a/tests/baselines/reference/modularizeLibrary_TargetES5UsingES6Lib.types b/tests/baselines/reference/modularizeLibrary_TargetES5UsingES6Lib.types
index 79695defe7b..9ca65cb9583 100644
--- a/tests/baselines/reference/modularizeLibrary_TargetES5UsingES6Lib.types
+++ b/tests/baselines/reference/modularizeLibrary_TargetES5UsingES6Lib.types
@@ -8,9 +8,9 @@ function f(x: number, y: number, z: number) {
 
     return Array.from(arguments);
 >Array.from(arguments) : any[]
->Array.from : { <T, U>(iterable: Iterable<T>, mapfn: (this: undefined, v: T, k: number) => U): U[]; <T, U>(iterable: Iterable<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(iterable: Iterable<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(iterable: Iterable<T>): T[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
+>Array.from : { <T, U>(iterable: Iterable<T>, mapfn: (this: void, v: T, k: number) => U): U[]; <T, U>(iterable: Iterable<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(iterable: Iterable<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(iterable: Iterable<T>): T[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
 >Array : ArrayConstructor
->from : { <T, U>(iterable: Iterable<T>, mapfn: (this: undefined, v: T, k: number) => U): U[]; <T, U>(iterable: Iterable<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(iterable: Iterable<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(iterable: Iterable<T>): T[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
+>from : { <T, U>(iterable: Iterable<T>, mapfn: (this: void, v: T, k: number) => U): U[]; <T, U>(iterable: Iterable<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(iterable: Iterable<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(iterable: Iterable<T>): T[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
 >arguments : IArguments
 }
 
diff --git a/tests/baselines/reference/modularizeLibrary_TargetES6UsingES6Lib.types b/tests/baselines/reference/modularizeLibrary_TargetES6UsingES6Lib.types
index c40341e17cc..1120b471f36 100644
--- a/tests/baselines/reference/modularizeLibrary_TargetES6UsingES6Lib.types
+++ b/tests/baselines/reference/modularizeLibrary_TargetES6UsingES6Lib.types
@@ -8,9 +8,9 @@ function f(x: number, y: number, z: number) {
 
     return Array.from(arguments);
 >Array.from(arguments) : any[]
->Array.from : { <T, U>(iterable: Iterable<T>, mapfn: (this: undefined, v: T, k: number) => U): U[]; <T, U>(iterable: Iterable<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(iterable: Iterable<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(iterable: Iterable<T>): T[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
+>Array.from : { <T, U>(iterable: Iterable<T>, mapfn: (this: void, v: T, k: number) => U): U[]; <T, U>(iterable: Iterable<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(iterable: Iterable<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(iterable: Iterable<T>): T[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
 >Array : ArrayConstructor
->from : { <T, U>(iterable: Iterable<T>, mapfn: (this: undefined, v: T, k: number) => U): U[]; <T, U>(iterable: Iterable<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(iterable: Iterable<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(iterable: Iterable<T>): T[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
+>from : { <T, U>(iterable: Iterable<T>, mapfn: (this: void, v: T, k: number) => U): U[]; <T, U>(iterable: Iterable<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(iterable: Iterable<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(iterable: Iterable<T>): T[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
 >arguments : IArguments
 }
 
diff --git a/tests/baselines/reference/modularizeLibrary_UsingES5LibAndES6ArrayLib.types b/tests/baselines/reference/modularizeLibrary_UsingES5LibAndES6ArrayLib.types
index c5368e33a3c..3c3905c501f 100644
--- a/tests/baselines/reference/modularizeLibrary_UsingES5LibAndES6ArrayLib.types
+++ b/tests/baselines/reference/modularizeLibrary_UsingES5LibAndES6ArrayLib.types
@@ -8,9 +8,9 @@ function f(x: number, y: number, z: number) {
 
     return Array.from(arguments);
 >Array.from(arguments) : any[]
->Array.from : { <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
+>Array.from : { <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
 >Array : ArrayConstructor
->from : { <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
+>from : { <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
 >arguments : IArguments
 }
 
diff --git a/tests/baselines/reference/modularizeLibrary_UsingES5LibES6ArrayLibES6WellknownSymbolLib.types b/tests/baselines/reference/modularizeLibrary_UsingES5LibES6ArrayLibES6WellknownSymbolLib.types
index 95144f1fd7a..3d4ba12fa63 100644
--- a/tests/baselines/reference/modularizeLibrary_UsingES5LibES6ArrayLibES6WellknownSymbolLib.types
+++ b/tests/baselines/reference/modularizeLibrary_UsingES5LibES6ArrayLibES6WellknownSymbolLib.types
@@ -7,9 +7,9 @@ function f(x: number, y: number, z: number) {
 
     return Array.from(arguments);
 >Array.from(arguments) : any[]
->Array.from : { <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
+>Array.from : { <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
 >Array : ArrayConstructor
->from : { <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: undefined, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
+>from : { <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U): U[]; <T, U>(arrayLike: ArrayLike<T>, mapfn: (this: void, v: T, k: number) => U, thisArg: undefined): U[]; <Z, T, U>(arrayLike: ArrayLike<T>, mapfn: (this: Z, v: T, k: number) => U, thisArg: Z): U[]; <T>(arrayLike: ArrayLike<T>): T[]; }
 >arguments : IArguments
 }
 
diff --git a/tests/baselines/reference/nestedSelf.types b/tests/baselines/reference/nestedSelf.types
index 176e0dc28d3..819a76dc380 100644
--- a/tests/baselines/reference/nestedSelf.types
+++ b/tests/baselines/reference/nestedSelf.types
@@ -12,13 +12,13 @@ module M {
    public foo() { [1,2,3].map((x) => { return this.n * x; })}
 >foo : () => void
 >[1,2,3].map((x) => { return this.n * x; }) : number[]
->[1,2,3].map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>[1,2,3].map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
 >[1,2,3] : number[]
 >1 : 1
 >2 : 2
 >3 : 3
->map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
->(x) => { return this.n * x; } : (this: undefined, x: number) => number
+>map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>(x) => { return this.n * x; } : (this: void, x: number) => number
 >x : number
 >this.n * x : number
 >this.n : number
diff --git a/tests/baselines/reference/noImplicitAnyInContextuallyTypesFunctionParamter.types b/tests/baselines/reference/noImplicitAnyInContextuallyTypesFunctionParamter.types
index 700a88a1dab..cee8cc24e44 100644
--- a/tests/baselines/reference/noImplicitAnyInContextuallyTypesFunctionParamter.types
+++ b/tests/baselines/reference/noImplicitAnyInContextuallyTypesFunctionParamter.types
@@ -7,10 +7,10 @@ var regexMatchList = ['', ''];
 
 regexMatchList.forEach(match => ''.replace(match, ''));
 >regexMatchList.forEach(match => ''.replace(match, '')) : void
->regexMatchList.forEach : { (callbackfn: (this: undefined, value: string, index: number, array: string[]) => void): void; (callbackfn: (this: undefined, value: string, index: number, array: string[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => void, thisArg: Z): void; }
+>regexMatchList.forEach : { (callbackfn: (this: void, value: string, index: number, array: string[]) => void): void; (callbackfn: (this: void, value: string, index: number, array: string[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => void, thisArg: Z): void; }
 >regexMatchList : string[]
->forEach : { (callbackfn: (this: undefined, value: string, index: number, array: string[]) => void): void; (callbackfn: (this: undefined, value: string, index: number, array: string[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => void, thisArg: Z): void; }
->match => ''.replace(match, '') : (this: undefined, match: string) => string
+>forEach : { (callbackfn: (this: void, value: string, index: number, array: string[]) => void): void; (callbackfn: (this: void, value: string, index: number, array: string[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => void, thisArg: Z): void; }
+>match => ''.replace(match, '') : (this: void, match: string) => string
 >match : string
 >''.replace(match, '') : string
 >''.replace : { (searchValue: string | RegExp, replaceValue: string): string; (searchValue: string | RegExp, replacer: (substring: string, ...args: any[]) => string): string; }
diff --git a/tests/baselines/reference/objectRestForOf.types b/tests/baselines/reference/objectRestForOf.types
index b7d1d1ac7be..ba6febd69c2 100644
--- a/tests/baselines/reference/objectRestForOf.types
+++ b/tests/baselines/reference/objectRestForOf.types
@@ -36,10 +36,10 @@ for ({ x: xx, ...rrestOff } of array ) {
 for (const norest of array.map(a => ({ ...a, x: 'a string' }))) {
 >norest : { x: string; y: string; }
 >array.map(a => ({ ...a, x: 'a string' })) : { x: string; y: string; }[]
->array.map : { <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: undefined, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U): [U, U, U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: undefined, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: Z, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: undefined, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U): [U, U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: undefined, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: Z, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: undefined, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U): [U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: undefined, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: Z, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: Z): [U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: undefined, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U): [U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: undefined, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [{ x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: Z, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U): U[]; <U>(callbackfn: (this: undefined, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: Z): U[]; }
+>array.map : { <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: void, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U): [U, U, U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: void, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: Z, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: void, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U): [U, U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: void, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: Z, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: void, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U): [U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: void, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: Z, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: Z): [U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: void, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U): [U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: void, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [{ x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: Z, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U): U[]; <U>(callbackfn: (this: void, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: Z): U[]; }
 >array : { x: number; y: string; }[]
->map : { <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: undefined, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U): [U, U, U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: undefined, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: Z, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: undefined, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U): [U, U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: undefined, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: Z, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: undefined, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U): [U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: undefined, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: Z, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: Z): [U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: undefined, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U): [U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: undefined, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [{ x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: Z, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U): U[]; <U>(callbackfn: (this: undefined, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: Z): U[]; }
->a => ({ ...a, x: 'a string' }) : (this: undefined, a: { x: number; y: string; }) => { x: string; y: string; }
+>map : { <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: void, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U): [U, U, U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: void, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: Z, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: void, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U): [U, U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: void, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: Z, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: void, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U): [U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: void, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [{ x: number; y: string; }, { x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: Z, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: Z): [U, U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: void, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U): [U, U]; <U>(this: [{ x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: void, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [{ x: number; y: string; }, { x: number; y: string; }], callbackfn: (this: Z, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U): U[]; <U>(callbackfn: (this: void, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: { x: number; y: string; }, index: number, array: { x: number; y: string; }[]) => U, thisArg: Z): U[]; }
+>a => ({ ...a, x: 'a string' }) : (this: void, a: { x: number; y: string; }) => { x: string; y: string; }
 >a : { x: number; y: string; }
 >({ ...a, x: 'a string' }) : { x: string; y: string; }
 >{ ...a, x: 'a string' } : { x: string; y: string; }
diff --git a/tests/baselines/reference/simpleArrowFunctionParameterReferencedInObjectLiteral1.types b/tests/baselines/reference/simpleArrowFunctionParameterReferencedInObjectLiteral1.types
index ad683ef2e15..fa6f2b27fbe 100644
--- a/tests/baselines/reference/simpleArrowFunctionParameterReferencedInObjectLiteral1.types
+++ b/tests/baselines/reference/simpleArrowFunctionParameterReferencedInObjectLiteral1.types
@@ -1,15 +1,15 @@
 === tests/cases/compiler/simpleArrowFunctionParameterReferencedInObjectLiteral1.ts ===
 [].map(() => [].map(p => ({ X: p })));
 >[].map(() => [].map(p => ({ X: p }))) : { X: any; }[][]
->[].map : { <U>(this: [any, any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U, U, U]; <U>(this: [any, any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [any, any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U]; <U>(this: [any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U]; <U>(this: [any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U]; <U>(this: [any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): U[]; <U>(callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): U[]; }
+>[].map : { <U>(this: [any, any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U, U, U]; <U>(this: [any, any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [any, any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U]; <U>(this: [any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U]; <U>(this: [any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U]; <U>(this: [any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: any, index: number, array: any[]) => U): U[]; <U>(callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): U[]; }
 >[] : undefined[]
->map : { <U>(this: [any, any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U, U, U]; <U>(this: [any, any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [any, any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U]; <U>(this: [any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U]; <U>(this: [any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U]; <U>(this: [any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): U[]; <U>(callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): U[]; }
+>map : { <U>(this: [any, any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U, U, U]; <U>(this: [any, any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [any, any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U]; <U>(this: [any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U]; <U>(this: [any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U]; <U>(this: [any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: any, index: number, array: any[]) => U): U[]; <U>(callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): U[]; }
 >() => [].map(p => ({ X: p })) : () => { X: any; }[]
 >[].map(p => ({ X: p })) : { X: any; }[]
->[].map : { <U>(this: [any, any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U, U, U]; <U>(this: [any, any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [any, any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U]; <U>(this: [any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U]; <U>(this: [any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U]; <U>(this: [any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): U[]; <U>(callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): U[]; }
+>[].map : { <U>(this: [any, any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U, U, U]; <U>(this: [any, any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [any, any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U]; <U>(this: [any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U]; <U>(this: [any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U]; <U>(this: [any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: any, index: number, array: any[]) => U): U[]; <U>(callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): U[]; }
 >[] : undefined[]
->map : { <U>(this: [any, any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U, U, U]; <U>(this: [any, any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [any, any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U, U]; <U>(this: [any, any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U]; <U>(this: [any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): [U, U]; <U>(this: [any, any], callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: any, index: number, array: any[]) => U): U[]; <U>(callbackfn: (this: undefined, value: any, index: number, array: any[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): U[]; }
->p => ({ X: p }) : (this: undefined, p: any) => { X: any; }
+>map : { <U>(this: [any, any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U, U, U]; <U>(this: [any, any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [any, any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U, U]; <U>(this: [any, any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [any, any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U, U]; <U>(this: [any, any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [any, any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U, U]; <U>(this: [any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U): [U, U]; <U>(this: [any, any], callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [any, any], callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: any, index: number, array: any[]) => U): U[]; <U>(callbackfn: (this: void, value: any, index: number, array: any[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: any, index: number, array: any[]) => U, thisArg: Z): U[]; }
+>p => ({ X: p }) : (this: void, p: any) => { X: any; }
 >p : any
 >({ X: p }) : { X: any; }
 >{ X: p } : { X: any; }
diff --git a/tests/baselines/reference/specializationsShouldNotAffectEachOther.types b/tests/baselines/reference/specializationsShouldNotAffectEachOther.types
index 01bdfc4bda6..b7dea45c6eb 100644
--- a/tests/baselines/reference/specializationsShouldNotAffectEachOther.types
+++ b/tests/baselines/reference/specializationsShouldNotAffectEachOther.types
@@ -25,9 +25,9 @@ function foo() {
 
     series2.map(seriesExtent);
 >series2.map(seriesExtent) : any[]
->series2.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>series2.map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
 >series2 : number[]
->map : { <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
+>map : { <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U]; <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U]; <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U]; <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U]; <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[]; <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[]; }
 >seriesExtent : (series: any) => any
 
     return null;
@@ -38,12 +38,12 @@ function foo() {
 var keyExtent2: any[] = series.data.map(function (d: string) { return d; });
 >keyExtent2 : any[]
 >series.data.map(function (d: string) { return d; }) : string[]
->series.data.map : { <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
+>series.data.map : { <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
 >series.data : string[]
 >series : Series
 >data : string[]
->map : { <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
->function (d: string) { return d; } : (this: undefined, d: string) => string
+>map : { <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U, U]; <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U]; <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U]; <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U]; <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U): U[]; <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[]; }
+>function (d: string) { return d; } : (this: void, d: string) => string
 >d : string
 >d : string
 
diff --git a/tests/baselines/reference/targetTypeArgs.types b/tests/baselines/reference/targetTypeArgs.types
index e1bcb00ba15..ae09b5185a9 100644
--- a/tests/baselines/reference/targetTypeArgs.types
+++ b/tests/baselines/reference/targetTypeArgs.types
@@ -19,11 +19,11 @@ foo(function(x) { x });
 
 [1].forEach(function(v,i,a) { v });
 >[1].forEach(function(v,i,a) { v }) : void
->[1].forEach : { (callbackfn: (this: undefined, value: number, index: number, array: number[]) => void): void; (callbackfn: (this: undefined, value: number, index: number, array: number[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: number, index: number, array: number[]) => void, thisArg: Z): void; }
+>[1].forEach : { (callbackfn: (this: void, value: number, index: number, array: number[]) => void): void; (callbackfn: (this: void, value: number, index: number, array: number[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: number, index: number, array: number[]) => void, thisArg: Z): void; }
 >[1] : number[]
 >1 : 1
->forEach : { (callbackfn: (this: undefined, value: number, index: number, array: number[]) => void): void; (callbackfn: (this: undefined, value: number, index: number, array: number[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: number, index: number, array: number[]) => void, thisArg: Z): void; }
->function(v,i,a) { v } : (this: undefined, v: number, i: number, a: number[]) => void
+>forEach : { (callbackfn: (this: void, value: number, index: number, array: number[]) => void): void; (callbackfn: (this: void, value: number, index: number, array: number[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: number, index: number, array: number[]) => void, thisArg: Z): void; }
+>function(v,i,a) { v } : (this: void, v: number, i: number, a: number[]) => void
 >v : number
 >i : number
 >a : number[]
@@ -31,11 +31,11 @@ foo(function(x) { x });
 
 ["hello"].every(function(v,i,a) {return true;});
 >["hello"].every(function(v,i,a) {return true;}) : boolean
->["hello"].every : { (callbackfn: (this: undefined, value: string, index: number, array: string[]) => boolean): boolean; (callbackfn: (this: undefined, value: string, index: number, array: string[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => boolean, thisArg: Z): boolean; }
+>["hello"].every : { (callbackfn: (this: void, value: string, index: number, array: string[]) => boolean): boolean; (callbackfn: (this: void, value: string, index: number, array: string[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => boolean, thisArg: Z): boolean; }
 >["hello"] : string[]
 >"hello" : "hello"
->every : { (callbackfn: (this: undefined, value: string, index: number, array: string[]) => boolean): boolean; (callbackfn: (this: undefined, value: string, index: number, array: string[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => boolean, thisArg: Z): boolean; }
->function(v,i,a) {return true;} : (this: undefined, v: string, i: number, a: string[]) => true
+>every : { (callbackfn: (this: void, value: string, index: number, array: string[]) => boolean): boolean; (callbackfn: (this: void, value: string, index: number, array: string[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => boolean, thisArg: Z): boolean; }
+>function(v,i,a) {return true;} : (this: void, v: string, i: number, a: string[]) => true
 >v : string
 >i : number
 >a : string[]
@@ -43,11 +43,11 @@ foo(function(x) { x });
 
 [1].every(function(v,i,a) {return true;});
 >[1].every(function(v,i,a) {return true;}) : boolean
->[1].every : { (callbackfn: (this: undefined, value: number, index: number, array: number[]) => boolean): boolean; (callbackfn: (this: undefined, value: number, index: number, array: number[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: number, index: number, array: number[]) => boolean, thisArg: Z): boolean; }
+>[1].every : { (callbackfn: (this: void, value: number, index: number, array: number[]) => boolean): boolean; (callbackfn: (this: void, value: number, index: number, array: number[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: number, index: number, array: number[]) => boolean, thisArg: Z): boolean; }
 >[1] : number[]
 >1 : 1
->every : { (callbackfn: (this: undefined, value: number, index: number, array: number[]) => boolean): boolean; (callbackfn: (this: undefined, value: number, index: number, array: number[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: number, index: number, array: number[]) => boolean, thisArg: Z): boolean; }
->function(v,i,a) {return true;} : (this: undefined, v: number, i: number, a: number[]) => true
+>every : { (callbackfn: (this: void, value: number, index: number, array: number[]) => boolean): boolean; (callbackfn: (this: void, value: number, index: number, array: number[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: number, index: number, array: number[]) => boolean, thisArg: Z): boolean; }
+>function(v,i,a) {return true;} : (this: void, v: number, i: number, a: number[]) => true
 >v : number
 >i : number
 >a : number[]
@@ -55,11 +55,11 @@ foo(function(x) { x });
 
 [1].every(function(v,i,a) {return true;});
 >[1].every(function(v,i,a) {return true;}) : boolean
->[1].every : { (callbackfn: (this: undefined, value: number, index: number, array: number[]) => boolean): boolean; (callbackfn: (this: undefined, value: number, index: number, array: number[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: number, index: number, array: number[]) => boolean, thisArg: Z): boolean; }
+>[1].every : { (callbackfn: (this: void, value: number, index: number, array: number[]) => boolean): boolean; (callbackfn: (this: void, value: number, index: number, array: number[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: number, index: number, array: number[]) => boolean, thisArg: Z): boolean; }
 >[1] : number[]
 >1 : 1
->every : { (callbackfn: (this: undefined, value: number, index: number, array: number[]) => boolean): boolean; (callbackfn: (this: undefined, value: number, index: number, array: number[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: number, index: number, array: number[]) => boolean, thisArg: Z): boolean; }
->function(v,i,a) {return true;} : (this: undefined, v: number, i: number, a: number[]) => true
+>every : { (callbackfn: (this: void, value: number, index: number, array: number[]) => boolean): boolean; (callbackfn: (this: void, value: number, index: number, array: number[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: number, index: number, array: number[]) => boolean, thisArg: Z): boolean; }
+>function(v,i,a) {return true;} : (this: void, v: number, i: number, a: number[]) => true
 >v : number
 >i : number
 >a : number[]
@@ -67,11 +67,11 @@ foo(function(x) { x });
 
 ["s"].every(function(v,i,a) {return true;});
 >["s"].every(function(v,i,a) {return true;}) : boolean
->["s"].every : { (callbackfn: (this: undefined, value: string, index: number, array: string[]) => boolean): boolean; (callbackfn: (this: undefined, value: string, index: number, array: string[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => boolean, thisArg: Z): boolean; }
+>["s"].every : { (callbackfn: (this: void, value: string, index: number, array: string[]) => boolean): boolean; (callbackfn: (this: void, value: string, index: number, array: string[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => boolean, thisArg: Z): boolean; }
 >["s"] : string[]
 >"s" : "s"
->every : { (callbackfn: (this: undefined, value: string, index: number, array: string[]) => boolean): boolean; (callbackfn: (this: undefined, value: string, index: number, array: string[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => boolean, thisArg: Z): boolean; }
->function(v,i,a) {return true;} : (this: undefined, v: string, i: number, a: string[]) => true
+>every : { (callbackfn: (this: void, value: string, index: number, array: string[]) => boolean): boolean; (callbackfn: (this: void, value: string, index: number, array: string[]) => boolean, thisArg: undefined): boolean; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => boolean, thisArg: Z): boolean; }
+>function(v,i,a) {return true;} : (this: void, v: string, i: number, a: string[]) => true
 >v : string
 >i : number
 >a : string[]
@@ -79,11 +79,11 @@ foo(function(x) { x });
 
 ["s"].forEach(function(v,i,a) { v });
 >["s"].forEach(function(v,i,a) { v }) : void
->["s"].forEach : { (callbackfn: (this: undefined, value: string, index: number, array: string[]) => void): void; (callbackfn: (this: undefined, value: string, index: number, array: string[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => void, thisArg: Z): void; }
+>["s"].forEach : { (callbackfn: (this: void, value: string, index: number, array: string[]) => void): void; (callbackfn: (this: void, value: string, index: number, array: string[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => void, thisArg: Z): void; }
 >["s"] : string[]
 >"s" : "s"
->forEach : { (callbackfn: (this: undefined, value: string, index: number, array: string[]) => void): void; (callbackfn: (this: undefined, value: string, index: number, array: string[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => void, thisArg: Z): void; }
->function(v,i,a) { v } : (this: undefined, v: string, i: number, a: string[]) => void
+>forEach : { (callbackfn: (this: void, value: string, index: number, array: string[]) => void): void; (callbackfn: (this: void, value: string, index: number, array: string[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => void, thisArg: Z): void; }
+>function(v,i,a) { v } : (this: void, v: string, i: number, a: string[]) => void
 >v : string
 >i : number
 >a : string[]
diff --git a/tests/baselines/reference/targetTypeObjectLiteralToAny.types b/tests/baselines/reference/targetTypeObjectLiteralToAny.types
index 1364a5b2a23..b8802638728 100644
--- a/tests/baselines/reference/targetTypeObjectLiteralToAny.types
+++ b/tests/baselines/reference/targetTypeObjectLiteralToAny.types
@@ -10,10 +10,10 @@ function suggest(){
 					
 	TypeScriptKeywords.forEach(function(keyword) {						
 >TypeScriptKeywords.forEach(function(keyword) {								result.push({text:keyword, type:"keyword"}); // this should not cause a crash - push should be typed to any	}) : void
->TypeScriptKeywords.forEach : { (callbackfn: (this: undefined, value: string, index: number, array: string[]) => void): void; (callbackfn: (this: undefined, value: string, index: number, array: string[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => void, thisArg: Z): void; }
+>TypeScriptKeywords.forEach : { (callbackfn: (this: void, value: string, index: number, array: string[]) => void): void; (callbackfn: (this: void, value: string, index: number, array: string[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => void, thisArg: Z): void; }
 >TypeScriptKeywords : string[]
->forEach : { (callbackfn: (this: undefined, value: string, index: number, array: string[]) => void): void; (callbackfn: (this: undefined, value: string, index: number, array: string[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => void, thisArg: Z): void; }
->function(keyword) {								result.push({text:keyword, type:"keyword"}); // this should not cause a crash - push should be typed to any	} : (this: undefined, keyword: string) => void
+>forEach : { (callbackfn: (this: void, value: string, index: number, array: string[]) => void): void; (callbackfn: (this: void, value: string, index: number, array: string[]) => void, thisArg: undefined): void; <Z>(callbackfn: (this: Z, value: string, index: number, array: string[]) => void, thisArg: Z): void; }
+>function(keyword) {								result.push({text:keyword, type:"keyword"}); // this should not cause a crash - push should be typed to any	} : (this: void, keyword: string) => void
 >keyword : string
 
 		result.push({text:keyword, type:"keyword"}); // this should not cause a crash - push should be typed to any
diff --git a/tests/baselines/reference/thisTypeInNativeThisAssignableMethods.errors.txt b/tests/baselines/reference/thisTypeInNativeThisAssignableMethods.errors.txt
new file mode 100644
index 00000000000..817478aa68e
--- /dev/null
+++ b/tests/baselines/reference/thisTypeInNativeThisAssignableMethods.errors.txt
@@ -0,0 +1,409 @@
+tests/cases/compiler/thisTypeInNativeThisAssignableMethods.ts(17,31): error TS2345: Argument of type 'void' is not assignable to parameter of type 'undefined'.
+tests/cases/compiler/thisTypeInNativeThisAssignableMethods.ts(20,31): error TS2345: Argument of type 'void' is not assignable to parameter of type 'undefined'.
+tests/cases/compiler/thisTypeInNativeThisAssignableMethods.ts(23,31): error TS2345: Argument of type 'void' is not assignable to parameter of type 'undefined'.
+
+
+==== tests/cases/compiler/thisTypeInNativeThisAssignableMethods.ts (3 errors) ====
+    class A {
+        options: string[];
+    
+        addOptions(options: string[]) {
+            if (!this.options) {
+                this.options = [];
+            }
+            options.forEach(function (item) {
+                this.options.push(item);
+            }, this);
+            return this;
+        }
+    
+        testUndefined(options: string[]) {
+            const undefinedArr: Array<undefined> = []
+            options.forEach(function () {
+                undefinedArr.push(this);
+                                  ~~~~
+!!! error TS2345: Argument of type 'void' is not assignable to parameter of type 'undefined'.
+            }); // case1
+            options.forEach(function () {
+                undefinedArr.push(this);
+                                  ~~~~
+!!! error TS2345: Argument of type 'void' is not assignable to parameter of type 'undefined'.
+            }, undefined); // case2
+            options.forEach(function () {
+                undefinedArr.push(this);
+                                  ~~~~
+!!! error TS2345: Argument of type 'void' is not assignable to parameter of type 'undefined'.
+            }, null); // case3
+    
+            const arrLike = {} as ArrayLike<number>
+            Array.from(arrLike, function (item) {
+                return this === undefined ? 2 : 1;
+            }, undefined)
+    
+            const iterLike = [] as Iterable<number>
+            Array.from(iterLike, function (item) {
+                return this === undefined ? 2 : 1;
+            }, undefined)
+        }
+    
+        test(options: string[]) {
+            const thisObject = {
+                options: [] as string[]
+            };
+    
+            options.find(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.findIndex(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.forEach(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.map(function (val, index) {
+                if (val === this.options[index])
+                    return this.options[index];
+            }, thisObject);
+    
+            options.some(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.filter(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.every(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            const arrLike = {} as ArrayLike<number>
+            Array.from(arrLike, function (item) {
+                return this.options[item].length
+            }, thisObject)
+    
+            const iterLike = [] as Iterable<number>
+            Array.from(iterLike, function (item) {
+                return this.options[item].length
+            }, thisObject)
+        }
+    
+        test1(options: string[]) {
+            const thisObject = {
+                options: [] as ReadonlyArray<string>
+            };
+    
+            options.find(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.findIndex(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.forEach(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.map(function (val, index) {
+                if (val === this.options[index])
+                    return this.options[index];
+            }, thisObject);
+    
+            options.some(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.filter(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.every(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+        }
+    
+        test2(options: Int8Array[]) {
+            const thisObject = {
+                options: [] as Int8Array[]
+            };
+    
+            options.find(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.findIndex(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.forEach(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.map(function (val, index) {
+                if (val === this.options[index])
+                    return this.options[index];
+            }, thisObject);
+    
+            options.some(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.filter(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.every(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+        }
+    
+        test3(options: Uint8Array[]) {
+            const thisObject = {
+                options: [] as Uint8Array[]
+            };
+    
+            options.find(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.findIndex(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.forEach(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.map(function (val, index) {
+                if (val === this.options[index])
+                    return this.options[index];
+            }, thisObject);
+    
+            options.some(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.filter(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.every(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+        }
+    
+        test4(options: Float32Array[]) {
+            const thisObject = {
+                options: [] as Float32Array[]
+            };
+    
+            options.find(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.findIndex(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.forEach(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.map(function (val, index) {
+                if (val === this.options[index])
+                    return this.options[index];
+            }, thisObject);
+    
+            options.some(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.filter(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.every(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+        }
+    
+        test5(options: Uint8ClampedArray[]) {
+            const thisObject = {
+                options: [] as Uint8ClampedArray[]
+            };
+    
+            options.find(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.findIndex(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.forEach(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.map(function (val, index) {
+                if (val === this.options[index])
+                    return this.options[index];
+            }, thisObject);
+    
+            options.some(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.filter(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.every(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+        }
+    
+        test6(options: Int16Array[]) {
+            const thisObject = {
+                options: [] as Int16Array[]
+            };
+    
+            options.find(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.findIndex(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.forEach(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.map(function (val, index) {
+                if (val === this.options[index])
+                    return this.options[index];
+            }, thisObject);
+    
+            options.some(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.filter(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.every(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+        }
+    
+        test7(options: Uint16Array[]) {
+            const thisObject = {
+                options: [] as Uint16Array[]
+            };
+    
+            options.find(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.findIndex(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.forEach(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.map(function (val, index) {
+                if (val === this.options[index])
+                    return this.options[index];
+            }, thisObject);
+    
+            options.some(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.filter(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.every(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+        }
+    
+        test8(options: Uint32Array[]) {
+            const thisObject = {
+                options: [] as Uint32Array[]
+            };
+    
+            options.find(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.findIndex(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.forEach(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.map(function (val, index) {
+                if (val === this.options[index])
+                    return this.options[index];
+            }, thisObject);
+    
+            options.some(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.filter(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.every(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+        }
+    
+        test9(options: Float64Array[]) {
+            const thisObject = {
+                options: [] as Float64Array[]
+            };
+    
+            options.find(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.findIndex(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.forEach(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.map(function (val, index) {
+                if (val === this.options[index])
+                    return this.options[index];
+            }, thisObject);
+    
+            options.some(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.filter(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+    
+            options.every(function (val, index) {
+                return val === this.options[index];
+            }, thisObject);
+        }
+    }
+    
\ No newline at end of file
diff --git a/tests/baselines/reference/tsxSpreadChildren.types b/tests/baselines/reference/tsxSpreadChildren.types
index dcdd0cd7137..7f4609c30b8 100644
--- a/tests/baselines/reference/tsxSpreadChildren.types
+++ b/tests/baselines/reference/tsxSpreadChildren.types
@@ -63,10 +63,10 @@ function TodoList({ todos }: TodoListProps) {
 
         {...todos.map(todo => <Todo key={todo.id} todo={todo.todo}/>)}
 >todos.map(todo => <Todo key={todo.id} todo={todo.todo}/>) : JSX.Element[]
->todos.map : { <U>(this: [TodoProp, TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: undefined, value: TodoProp, index: number, array: TodoProp[]) => U): [U, U, U, U, U]; <U>(this: [TodoProp, TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: undefined, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [TodoProp, TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: Z, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: undefined, value: TodoProp, index: number, array: TodoProp[]) => U): [U, U, U, U]; <U>(this: [TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: undefined, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: Z, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [TodoProp, TodoProp, TodoProp], callbackfn: (this: undefined, value: TodoProp, index: number, array: TodoProp[]) => U): [U, U, U]; <U>(this: [TodoProp, TodoProp, TodoProp], callbackfn: (this: undefined, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [TodoProp, TodoProp, TodoProp], callbackfn: (this: Z, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: Z): [U, U, U]; <U>(this: [TodoProp, TodoProp], callbackfn: (this: undefined, value: TodoProp, index: number, array: TodoProp[]) => U): [U, U]; <U>(this: [TodoProp, TodoProp], callbackfn: (this: undefined, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [TodoProp, TodoProp], callbackfn: (this: Z, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: TodoProp, index: number, array: TodoProp[]) => U): U[]; <U>(callbackfn: (this: undefined, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: Z): U[]; }
+>todos.map : { <U>(this: [TodoProp, TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: void, value: TodoProp, index: number, array: TodoProp[]) => U): [U, U, U, U, U]; <U>(this: [TodoProp, TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: void, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [TodoProp, TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: Z, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: void, value: TodoProp, index: number, array: TodoProp[]) => U): [U, U, U, U]; <U>(this: [TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: void, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: Z, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [TodoProp, TodoProp, TodoProp], callbackfn: (this: void, value: TodoProp, index: number, array: TodoProp[]) => U): [U, U, U]; <U>(this: [TodoProp, TodoProp, TodoProp], callbackfn: (this: void, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [TodoProp, TodoProp, TodoProp], callbackfn: (this: Z, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: Z): [U, U, U]; <U>(this: [TodoProp, TodoProp], callbackfn: (this: void, value: TodoProp, index: number, array: TodoProp[]) => U): [U, U]; <U>(this: [TodoProp, TodoProp], callbackfn: (this: void, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [TodoProp, TodoProp], callbackfn: (this: Z, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: TodoProp, index: number, array: TodoProp[]) => U): U[]; <U>(callbackfn: (this: void, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: Z): U[]; }
 >todos : TodoProp[]
->map : { <U>(this: [TodoProp, TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: undefined, value: TodoProp, index: number, array: TodoProp[]) => U): [U, U, U, U, U]; <U>(this: [TodoProp, TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: undefined, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [TodoProp, TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: Z, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: undefined, value: TodoProp, index: number, array: TodoProp[]) => U): [U, U, U, U]; <U>(this: [TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: undefined, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: Z, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [TodoProp, TodoProp, TodoProp], callbackfn: (this: undefined, value: TodoProp, index: number, array: TodoProp[]) => U): [U, U, U]; <U>(this: [TodoProp, TodoProp, TodoProp], callbackfn: (this: undefined, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [TodoProp, TodoProp, TodoProp], callbackfn: (this: Z, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: Z): [U, U, U]; <U>(this: [TodoProp, TodoProp], callbackfn: (this: undefined, value: TodoProp, index: number, array: TodoProp[]) => U): [U, U]; <U>(this: [TodoProp, TodoProp], callbackfn: (this: undefined, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [TodoProp, TodoProp], callbackfn: (this: Z, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: TodoProp, index: number, array: TodoProp[]) => U): U[]; <U>(callbackfn: (this: undefined, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: Z): U[]; }
->todo => <Todo key={todo.id} todo={todo.todo}/> : (this: undefined, todo: TodoProp) => JSX.Element
+>map : { <U>(this: [TodoProp, TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: void, value: TodoProp, index: number, array: TodoProp[]) => U): [U, U, U, U, U]; <U>(this: [TodoProp, TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: void, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [TodoProp, TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: Z, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: void, value: TodoProp, index: number, array: TodoProp[]) => U): [U, U, U, U]; <U>(this: [TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: void, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [TodoProp, TodoProp, TodoProp, TodoProp], callbackfn: (this: Z, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [TodoProp, TodoProp, TodoProp], callbackfn: (this: void, value: TodoProp, index: number, array: TodoProp[]) => U): [U, U, U]; <U>(this: [TodoProp, TodoProp, TodoProp], callbackfn: (this: void, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [TodoProp, TodoProp, TodoProp], callbackfn: (this: Z, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: Z): [U, U, U]; <U>(this: [TodoProp, TodoProp], callbackfn: (this: void, value: TodoProp, index: number, array: TodoProp[]) => U): [U, U]; <U>(this: [TodoProp, TodoProp], callbackfn: (this: void, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [TodoProp, TodoProp], callbackfn: (this: Z, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: TodoProp, index: number, array: TodoProp[]) => U): U[]; <U>(callbackfn: (this: void, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: TodoProp, index: number, array: TodoProp[]) => U, thisArg: Z): U[]; }
+>todo => <Todo key={todo.id} todo={todo.todo}/> : (this: void, todo: TodoProp) => JSX.Element
 >todo : TodoProp
 ><Todo key={todo.id} todo={todo.todo}/> : JSX.Element
 >Todo : (prop: { key: number; todo: string; }) => JSX.Element
diff --git a/tests/baselines/reference/typeArgumentInferenceWithRecursivelyReferencedTypeAliasToTypeLiteral01.types b/tests/baselines/reference/typeArgumentInferenceWithRecursivelyReferencedTypeAliasToTypeLiteral01.types
index 21332704326..518bf14d010 100644
--- a/tests/baselines/reference/typeArgumentInferenceWithRecursivelyReferencedTypeAliasToTypeLiteral01.types
+++ b/tests/baselines/reference/typeArgumentInferenceWithRecursivelyReferencedTypeAliasToTypeLiteral01.types
@@ -16,10 +16,10 @@ var nodes: TreeNode[];
 
 nodes.map(n => n.name);
 >nodes.map(n => n.name) : string[]
->nodes.map : { <U>(this: [TreeNode, TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: undefined, value: TreeNode, index: number, array: TreeNode[]) => U): [U, U, U, U, U]; <U>(this: [TreeNode, TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: undefined, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [TreeNode, TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: Z, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: undefined, value: TreeNode, index: number, array: TreeNode[]) => U): [U, U, U, U]; <U>(this: [TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: undefined, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: Z, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [TreeNode, TreeNode, TreeNode], callbackfn: (this: undefined, value: TreeNode, index: number, array: TreeNode[]) => U): [U, U, U]; <U>(this: [TreeNode, TreeNode, TreeNode], callbackfn: (this: undefined, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [TreeNode, TreeNode, TreeNode], callbackfn: (this: Z, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: Z): [U, U, U]; <U>(this: [TreeNode, TreeNode], callbackfn: (this: undefined, value: TreeNode, index: number, array: TreeNode[]) => U): [U, U]; <U>(this: [TreeNode, TreeNode], callbackfn: (this: undefined, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [TreeNode, TreeNode], callbackfn: (this: Z, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: TreeNode, index: number, array: TreeNode[]) => U): U[]; <U>(callbackfn: (this: undefined, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: Z): U[]; }
+>nodes.map : { <U>(this: [TreeNode, TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: void, value: TreeNode, index: number, array: TreeNode[]) => U): [U, U, U, U, U]; <U>(this: [TreeNode, TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: void, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [TreeNode, TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: Z, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: void, value: TreeNode, index: number, array: TreeNode[]) => U): [U, U, U, U]; <U>(this: [TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: void, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: Z, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [TreeNode, TreeNode, TreeNode], callbackfn: (this: void, value: TreeNode, index: number, array: TreeNode[]) => U): [U, U, U]; <U>(this: [TreeNode, TreeNode, TreeNode], callbackfn: (this: void, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [TreeNode, TreeNode, TreeNode], callbackfn: (this: Z, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: Z): [U, U, U]; <U>(this: [TreeNode, TreeNode], callbackfn: (this: void, value: TreeNode, index: number, array: TreeNode[]) => U): [U, U]; <U>(this: [TreeNode, TreeNode], callbackfn: (this: void, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [TreeNode, TreeNode], callbackfn: (this: Z, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: TreeNode, index: number, array: TreeNode[]) => U): U[]; <U>(callbackfn: (this: void, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: Z): U[]; }
 >nodes : TreeNode[]
->map : { <U>(this: [TreeNode, TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: undefined, value: TreeNode, index: number, array: TreeNode[]) => U): [U, U, U, U, U]; <U>(this: [TreeNode, TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: undefined, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [TreeNode, TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: Z, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: undefined, value: TreeNode, index: number, array: TreeNode[]) => U): [U, U, U, U]; <U>(this: [TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: undefined, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: Z, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [TreeNode, TreeNode, TreeNode], callbackfn: (this: undefined, value: TreeNode, index: number, array: TreeNode[]) => U): [U, U, U]; <U>(this: [TreeNode, TreeNode, TreeNode], callbackfn: (this: undefined, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [TreeNode, TreeNode, TreeNode], callbackfn: (this: Z, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: Z): [U, U, U]; <U>(this: [TreeNode, TreeNode], callbackfn: (this: undefined, value: TreeNode, index: number, array: TreeNode[]) => U): [U, U]; <U>(this: [TreeNode, TreeNode], callbackfn: (this: undefined, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [TreeNode, TreeNode], callbackfn: (this: Z, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: TreeNode, index: number, array: TreeNode[]) => U): U[]; <U>(callbackfn: (this: undefined, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: Z): U[]; }
->n => n.name : (this: undefined, n: TreeNode) => string
+>map : { <U>(this: [TreeNode, TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: void, value: TreeNode, index: number, array: TreeNode[]) => U): [U, U, U, U, U]; <U>(this: [TreeNode, TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: void, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [TreeNode, TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: Z, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: void, value: TreeNode, index: number, array: TreeNode[]) => U): [U, U, U, U]; <U>(this: [TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: void, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [TreeNode, TreeNode, TreeNode, TreeNode], callbackfn: (this: Z, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [TreeNode, TreeNode, TreeNode], callbackfn: (this: void, value: TreeNode, index: number, array: TreeNode[]) => U): [U, U, U]; <U>(this: [TreeNode, TreeNode, TreeNode], callbackfn: (this: void, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [TreeNode, TreeNode, TreeNode], callbackfn: (this: Z, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: Z): [U, U, U]; <U>(this: [TreeNode, TreeNode], callbackfn: (this: void, value: TreeNode, index: number, array: TreeNode[]) => U): [U, U]; <U>(this: [TreeNode, TreeNode], callbackfn: (this: void, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [TreeNode, TreeNode], callbackfn: (this: Z, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: TreeNode, index: number, array: TreeNode[]) => U): U[]; <U>(callbackfn: (this: void, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: TreeNode, index: number, array: TreeNode[]) => U, thisArg: Z): U[]; }
+>n => n.name : (this: void, n: TreeNode) => string
 >n : TreeNode
 >n.name : string
 >n : TreeNode
diff --git a/tests/baselines/reference/typeArgumentInferenceWithRecursivelyReferencedTypeAliasToTypeLiteral02.types b/tests/baselines/reference/typeArgumentInferenceWithRecursivelyReferencedTypeAliasToTypeLiteral02.types
index 6cb4b81e0ce..45054ed6aa0 100644
--- a/tests/baselines/reference/typeArgumentInferenceWithRecursivelyReferencedTypeAliasToTypeLiteral02.types
+++ b/tests/baselines/reference/typeArgumentInferenceWithRecursivelyReferencedTypeAliasToTypeLiteral02.types
@@ -27,10 +27,10 @@ var nodes: TreeNodeMiddleman[];
 
 nodes.map(n => n.name);
 >nodes.map(n => n.name) : string[]
->nodes.map : { <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: undefined, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U): [U, U, U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: undefined, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: Z, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: undefined, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U): [U, U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: undefined, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: Z, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: undefined, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U): [U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: undefined, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: Z, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: Z): [U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: undefined, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U): [U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: undefined, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: Z, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U): U[]; <U>(callbackfn: (this: undefined, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: Z): U[]; }
+>nodes.map : { <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: void, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U): [U, U, U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: void, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: Z, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: void, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U): [U, U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: void, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: Z, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: void, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U): [U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: void, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: Z, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: Z): [U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: void, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U): [U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: void, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: Z, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U): U[]; <U>(callbackfn: (this: void, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: Z): U[]; }
 >nodes : TreeNodeMiddleman[]
->map : { <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: undefined, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U): [U, U, U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: undefined, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: Z, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: undefined, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U): [U, U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: undefined, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: Z, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: undefined, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U): [U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: undefined, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: Z, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: Z): [U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: undefined, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U): [U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: undefined, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: Z, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: undefined, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U): U[]; <U>(callbackfn: (this: undefined, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: Z): U[]; }
->n => n.name : (this: undefined, n: TreeNodeMiddleman) => string
+>map : { <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: void, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U): [U, U, U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: void, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: undefined): [U, U, U, U, U]; <Z, U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: Z, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: Z): [U, U, U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: void, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U): [U, U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: void, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: undefined): [U, U, U, U]; <Z, U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: Z, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: Z): [U, U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: void, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U): [U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: void, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: undefined): [U, U, U]; <Z, U>(this: [TreeNodeMiddleman, TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: Z, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: Z): [U, U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: void, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U): [U, U]; <U>(this: [TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: void, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: undefined): [U, U]; <Z, U>(this: [TreeNodeMiddleman, TreeNodeMiddleman], callbackfn: (this: Z, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: Z): [U, U]; <U>(callbackfn: (this: void, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U): U[]; <U>(callbackfn: (this: void, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: undefined): U[]; <Z, U>(callbackfn: (this: Z, value: TreeNodeMiddleman, index: number, array: TreeNodeMiddleman[]) => U, thisArg: Z): U[]; }
+>n => n.name : (this: void, n: TreeNodeMiddleman) => string
 >n : TreeNodeMiddleman
 >n.name : string
 >n : TreeNodeMiddleman
diff --git a/tests/baselines/reference/typedArrays.types b/tests/baselines/reference/typedArrays.types
index 2446fb1e2d9..259d601d426 100644
--- a/tests/baselines/reference/typedArrays.types
+++ b/tests/baselines/reference/typedArrays.types
@@ -273,9 +273,9 @@ function CreateIntegerTypedArraysFromArray2(obj:number[]) {
 >typedArrays : any[]
 >0 : 0
 >Int8Array.from(obj) : Int8Array
->Int8Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int8Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: ArrayLike<number>): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: Iterable<number>): Int8Array; }
+>Int8Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int8Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: ArrayLike<number>): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: Iterable<number>): Int8Array; }
 >Int8Array : Int8ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int8Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: ArrayLike<number>): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: Iterable<number>): Int8Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int8Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: ArrayLike<number>): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: Iterable<number>): Int8Array; }
 >obj : number[]
 
     typedArrays[1] = Uint8Array.from(obj);
@@ -284,9 +284,9 @@ function CreateIntegerTypedArraysFromArray2(obj:number[]) {
 >typedArrays : any[]
 >1 : 1
 >Uint8Array.from(obj) : Uint8Array
->Uint8Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: ArrayLike<number>): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: Iterable<number>): Uint8Array; }
+>Uint8Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint8Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: ArrayLike<number>): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: Iterable<number>): Uint8Array; }
 >Uint8Array : Uint8ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: ArrayLike<number>): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: Iterable<number>): Uint8Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint8Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: ArrayLike<number>): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: Iterable<number>): Uint8Array; }
 >obj : number[]
 
     typedArrays[2] = Int16Array.from(obj);
@@ -295,9 +295,9 @@ function CreateIntegerTypedArraysFromArray2(obj:number[]) {
 >typedArrays : any[]
 >2 : 2
 >Int16Array.from(obj) : Int16Array
->Int16Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int16Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: ArrayLike<number>): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: Iterable<number>): Int16Array; }
+>Int16Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int16Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: ArrayLike<number>): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: Iterable<number>): Int16Array; }
 >Int16Array : Int16ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int16Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: ArrayLike<number>): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: Iterable<number>): Int16Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int16Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: ArrayLike<number>): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: Iterable<number>): Int16Array; }
 >obj : number[]
 
     typedArrays[3] = Uint16Array.from(obj);
@@ -306,9 +306,9 @@ function CreateIntegerTypedArraysFromArray2(obj:number[]) {
 >typedArrays : any[]
 >3 : 3
 >Uint16Array.from(obj) : Uint16Array
->Uint16Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint16Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: ArrayLike<number>): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: Iterable<number>): Uint16Array; }
+>Uint16Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint16Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: ArrayLike<number>): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: Iterable<number>): Uint16Array; }
 >Uint16Array : Uint16ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint16Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: ArrayLike<number>): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: Iterable<number>): Uint16Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint16Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: ArrayLike<number>): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: Iterable<number>): Uint16Array; }
 >obj : number[]
 
     typedArrays[4] = Int32Array.from(obj);
@@ -317,9 +317,9 @@ function CreateIntegerTypedArraysFromArray2(obj:number[]) {
 >typedArrays : any[]
 >4 : 4
 >Int32Array.from(obj) : Int32Array
->Int32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: ArrayLike<number>): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: Iterable<number>): Int32Array; }
+>Int32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: ArrayLike<number>): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: Iterable<number>): Int32Array; }
 >Int32Array : Int32ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: ArrayLike<number>): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: Iterable<number>): Int32Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: ArrayLike<number>): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: Iterable<number>): Int32Array; }
 >obj : number[]
 
     typedArrays[5] = Uint32Array.from(obj);
@@ -328,9 +328,9 @@ function CreateIntegerTypedArraysFromArray2(obj:number[]) {
 >typedArrays : any[]
 >5 : 5
 >Uint32Array.from(obj) : Uint32Array
->Uint32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: ArrayLike<number>): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: Iterable<number>): Uint32Array; }
+>Uint32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: ArrayLike<number>): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: Iterable<number>): Uint32Array; }
 >Uint32Array : Uint32ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: ArrayLike<number>): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: Iterable<number>): Uint32Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: ArrayLike<number>): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: Iterable<number>): Uint32Array; }
 >obj : number[]
 
     typedArrays[6] = Float32Array.from(obj);
@@ -339,9 +339,9 @@ function CreateIntegerTypedArraysFromArray2(obj:number[]) {
 >typedArrays : any[]
 >6 : 6
 >Float32Array.from(obj) : Float32Array
->Float32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Float32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: ArrayLike<number>): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: Iterable<number>): Float32Array; }
+>Float32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Float32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: ArrayLike<number>): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: Iterable<number>): Float32Array; }
 >Float32Array : Float32ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Float32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: ArrayLike<number>): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: Iterable<number>): Float32Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Float32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: ArrayLike<number>): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: Iterable<number>): Float32Array; }
 >obj : number[]
 
     typedArrays[7] = Float64Array.from(obj);
@@ -350,9 +350,9 @@ function CreateIntegerTypedArraysFromArray2(obj:number[]) {
 >typedArrays : any[]
 >7 : 7
 >Float64Array.from(obj) : Float64Array
->Float64Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Float64Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: ArrayLike<number>): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: Iterable<number>): Float64Array; }
+>Float64Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Float64Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: ArrayLike<number>): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: Iterable<number>): Float64Array; }
 >Float64Array : Float64ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Float64Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: ArrayLike<number>): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: Iterable<number>): Float64Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Float64Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: ArrayLike<number>): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: Iterable<number>): Float64Array; }
 >obj : number[]
 
     typedArrays[8] = Uint8ClampedArray.from(obj);
@@ -361,9 +361,9 @@ function CreateIntegerTypedArraysFromArray2(obj:number[]) {
 >typedArrays : any[]
 >8 : 8
 >Uint8ClampedArray.from(obj) : Uint8ClampedArray
->Uint8ClampedArray.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: ArrayLike<number>): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: Iterable<number>): Uint8ClampedArray; }
+>Uint8ClampedArray.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: ArrayLike<number>): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: Iterable<number>): Uint8ClampedArray; }
 >Uint8ClampedArray : Uint8ClampedArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: ArrayLike<number>): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: Iterable<number>): Uint8ClampedArray; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: ArrayLike<number>): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: Iterable<number>): Uint8ClampedArray; }
 >obj : number[]
 
     return typedArrays;
@@ -385,9 +385,9 @@ function CreateIntegerTypedArraysFromArrayLike(obj:ArrayLike<number>) {
 >typedArrays : any[]
 >0 : 0
 >Int8Array.from(obj) : Int8Array
->Int8Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int8Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: ArrayLike<number>): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: Iterable<number>): Int8Array; }
+>Int8Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int8Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: ArrayLike<number>): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: Iterable<number>): Int8Array; }
 >Int8Array : Int8ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int8Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: ArrayLike<number>): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: Iterable<number>): Int8Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int8Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: ArrayLike<number>): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: Iterable<number>): Int8Array; }
 >obj : ArrayLike<number>
 
     typedArrays[1] = Uint8Array.from(obj);
@@ -396,9 +396,9 @@ function CreateIntegerTypedArraysFromArrayLike(obj:ArrayLike<number>) {
 >typedArrays : any[]
 >1 : 1
 >Uint8Array.from(obj) : Uint8Array
->Uint8Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: ArrayLike<number>): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: Iterable<number>): Uint8Array; }
+>Uint8Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint8Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: ArrayLike<number>): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: Iterable<number>): Uint8Array; }
 >Uint8Array : Uint8ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: ArrayLike<number>): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: Iterable<number>): Uint8Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint8Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: ArrayLike<number>): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: Iterable<number>): Uint8Array; }
 >obj : ArrayLike<number>
 
     typedArrays[2] = Int16Array.from(obj);
@@ -407,9 +407,9 @@ function CreateIntegerTypedArraysFromArrayLike(obj:ArrayLike<number>) {
 >typedArrays : any[]
 >2 : 2
 >Int16Array.from(obj) : Int16Array
->Int16Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int16Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: ArrayLike<number>): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: Iterable<number>): Int16Array; }
+>Int16Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int16Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: ArrayLike<number>): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: Iterable<number>): Int16Array; }
 >Int16Array : Int16ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int16Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: ArrayLike<number>): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: Iterable<number>): Int16Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int16Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: ArrayLike<number>): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: Iterable<number>): Int16Array; }
 >obj : ArrayLike<number>
 
     typedArrays[3] = Uint16Array.from(obj);
@@ -418,9 +418,9 @@ function CreateIntegerTypedArraysFromArrayLike(obj:ArrayLike<number>) {
 >typedArrays : any[]
 >3 : 3
 >Uint16Array.from(obj) : Uint16Array
->Uint16Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint16Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: ArrayLike<number>): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: Iterable<number>): Uint16Array; }
+>Uint16Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint16Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: ArrayLike<number>): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: Iterable<number>): Uint16Array; }
 >Uint16Array : Uint16ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint16Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: ArrayLike<number>): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: Iterable<number>): Uint16Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint16Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: ArrayLike<number>): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: Iterable<number>): Uint16Array; }
 >obj : ArrayLike<number>
 
     typedArrays[4] = Int32Array.from(obj);
@@ -429,9 +429,9 @@ function CreateIntegerTypedArraysFromArrayLike(obj:ArrayLike<number>) {
 >typedArrays : any[]
 >4 : 4
 >Int32Array.from(obj) : Int32Array
->Int32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: ArrayLike<number>): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: Iterable<number>): Int32Array; }
+>Int32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: ArrayLike<number>): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: Iterable<number>): Int32Array; }
 >Int32Array : Int32ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: ArrayLike<number>): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: Iterable<number>): Int32Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: ArrayLike<number>): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: Iterable<number>): Int32Array; }
 >obj : ArrayLike<number>
 
     typedArrays[5] = Uint32Array.from(obj);
@@ -440,9 +440,9 @@ function CreateIntegerTypedArraysFromArrayLike(obj:ArrayLike<number>) {
 >typedArrays : any[]
 >5 : 5
 >Uint32Array.from(obj) : Uint32Array
->Uint32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: ArrayLike<number>): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: Iterable<number>): Uint32Array; }
+>Uint32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: ArrayLike<number>): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: Iterable<number>): Uint32Array; }
 >Uint32Array : Uint32ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: ArrayLike<number>): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: Iterable<number>): Uint32Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: ArrayLike<number>): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: Iterable<number>): Uint32Array; }
 >obj : ArrayLike<number>
 
     typedArrays[6] = Float32Array.from(obj);
@@ -451,9 +451,9 @@ function CreateIntegerTypedArraysFromArrayLike(obj:ArrayLike<number>) {
 >typedArrays : any[]
 >6 : 6
 >Float32Array.from(obj) : Float32Array
->Float32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Float32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: ArrayLike<number>): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: Iterable<number>): Float32Array; }
+>Float32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Float32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: ArrayLike<number>): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: Iterable<number>): Float32Array; }
 >Float32Array : Float32ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Float32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: ArrayLike<number>): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: Iterable<number>): Float32Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Float32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: ArrayLike<number>): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: Iterable<number>): Float32Array; }
 >obj : ArrayLike<number>
 
     typedArrays[7] = Float64Array.from(obj);
@@ -462,9 +462,9 @@ function CreateIntegerTypedArraysFromArrayLike(obj:ArrayLike<number>) {
 >typedArrays : any[]
 >7 : 7
 >Float64Array.from(obj) : Float64Array
->Float64Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Float64Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: ArrayLike<number>): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: Iterable<number>): Float64Array; }
+>Float64Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Float64Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: ArrayLike<number>): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: Iterable<number>): Float64Array; }
 >Float64Array : Float64ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Float64Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: ArrayLike<number>): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: Iterable<number>): Float64Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Float64Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: ArrayLike<number>): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: Iterable<number>): Float64Array; }
 >obj : ArrayLike<number>
 
     typedArrays[8] = Uint8ClampedArray.from(obj);
@@ -473,9 +473,9 @@ function CreateIntegerTypedArraysFromArrayLike(obj:ArrayLike<number>) {
 >typedArrays : any[]
 >8 : 8
 >Uint8ClampedArray.from(obj) : Uint8ClampedArray
->Uint8ClampedArray.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: ArrayLike<number>): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: Iterable<number>): Uint8ClampedArray; }
+>Uint8ClampedArray.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: ArrayLike<number>): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: Iterable<number>): Uint8ClampedArray; }
 >Uint8ClampedArray : Uint8ClampedArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: ArrayLike<number>): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: Iterable<number>): Uint8ClampedArray; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: ArrayLike<number>): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: Iterable<number>): Uint8ClampedArray; }
 >obj : ArrayLike<number>
 
     return typedArrays;
@@ -757,9 +757,9 @@ function CreateTypedArraysFromMapFn(obj:ArrayLike<number>, mapFn: (n:number, v:n
 >typedArrays : any[]
 >0 : 0
 >Int8Array.from(obj, mapFn) : Int8Array
->Int8Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int8Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: ArrayLike<number>): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: Iterable<number>): Int8Array; }
+>Int8Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int8Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: ArrayLike<number>): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: Iterable<number>): Int8Array; }
 >Int8Array : Int8ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int8Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: ArrayLike<number>): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: Iterable<number>): Int8Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int8Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: ArrayLike<number>): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: Iterable<number>): Int8Array; }
 >obj : ArrayLike<number>
 >mapFn : (n: number, v: number) => number
 
@@ -769,9 +769,9 @@ function CreateTypedArraysFromMapFn(obj:ArrayLike<number>, mapFn: (n:number, v:n
 >typedArrays : any[]
 >1 : 1
 >Uint8Array.from(obj, mapFn) : Uint8Array
->Uint8Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: ArrayLike<number>): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: Iterable<number>): Uint8Array; }
+>Uint8Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint8Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: ArrayLike<number>): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: Iterable<number>): Uint8Array; }
 >Uint8Array : Uint8ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: ArrayLike<number>): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: Iterable<number>): Uint8Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint8Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: ArrayLike<number>): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: Iterable<number>): Uint8Array; }
 >obj : ArrayLike<number>
 >mapFn : (n: number, v: number) => number
 
@@ -781,9 +781,9 @@ function CreateTypedArraysFromMapFn(obj:ArrayLike<number>, mapFn: (n:number, v:n
 >typedArrays : any[]
 >2 : 2
 >Int16Array.from(obj, mapFn) : Int16Array
->Int16Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int16Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: ArrayLike<number>): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: Iterable<number>): Int16Array; }
+>Int16Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int16Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: ArrayLike<number>): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: Iterable<number>): Int16Array; }
 >Int16Array : Int16ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int16Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: ArrayLike<number>): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: Iterable<number>): Int16Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int16Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: ArrayLike<number>): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: Iterable<number>): Int16Array; }
 >obj : ArrayLike<number>
 >mapFn : (n: number, v: number) => number
 
@@ -793,9 +793,9 @@ function CreateTypedArraysFromMapFn(obj:ArrayLike<number>, mapFn: (n:number, v:n
 >typedArrays : any[]
 >3 : 3
 >Uint16Array.from(obj, mapFn) : Uint16Array
->Uint16Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint16Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: ArrayLike<number>): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: Iterable<number>): Uint16Array; }
+>Uint16Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint16Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: ArrayLike<number>): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: Iterable<number>): Uint16Array; }
 >Uint16Array : Uint16ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint16Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: ArrayLike<number>): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: Iterable<number>): Uint16Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint16Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: ArrayLike<number>): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: Iterable<number>): Uint16Array; }
 >obj : ArrayLike<number>
 >mapFn : (n: number, v: number) => number
 
@@ -805,9 +805,9 @@ function CreateTypedArraysFromMapFn(obj:ArrayLike<number>, mapFn: (n:number, v:n
 >typedArrays : any[]
 >4 : 4
 >Int32Array.from(obj, mapFn) : Int32Array
->Int32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: ArrayLike<number>): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: Iterable<number>): Int32Array; }
+>Int32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: ArrayLike<number>): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: Iterable<number>): Int32Array; }
 >Int32Array : Int32ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: ArrayLike<number>): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: Iterable<number>): Int32Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: ArrayLike<number>): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: Iterable<number>): Int32Array; }
 >obj : ArrayLike<number>
 >mapFn : (n: number, v: number) => number
 
@@ -817,9 +817,9 @@ function CreateTypedArraysFromMapFn(obj:ArrayLike<number>, mapFn: (n:number, v:n
 >typedArrays : any[]
 >5 : 5
 >Uint32Array.from(obj, mapFn) : Uint32Array
->Uint32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: ArrayLike<number>): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: Iterable<number>): Uint32Array; }
+>Uint32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: ArrayLike<number>): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: Iterable<number>): Uint32Array; }
 >Uint32Array : Uint32ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: ArrayLike<number>): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: Iterable<number>): Uint32Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: ArrayLike<number>): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: Iterable<number>): Uint32Array; }
 >obj : ArrayLike<number>
 >mapFn : (n: number, v: number) => number
 
@@ -829,9 +829,9 @@ function CreateTypedArraysFromMapFn(obj:ArrayLike<number>, mapFn: (n:number, v:n
 >typedArrays : any[]
 >6 : 6
 >Float32Array.from(obj, mapFn) : Float32Array
->Float32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Float32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: ArrayLike<number>): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: Iterable<number>): Float32Array; }
+>Float32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Float32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: ArrayLike<number>): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: Iterable<number>): Float32Array; }
 >Float32Array : Float32ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Float32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: ArrayLike<number>): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: Iterable<number>): Float32Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Float32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: ArrayLike<number>): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: Iterable<number>): Float32Array; }
 >obj : ArrayLike<number>
 >mapFn : (n: number, v: number) => number
 
@@ -841,9 +841,9 @@ function CreateTypedArraysFromMapFn(obj:ArrayLike<number>, mapFn: (n:number, v:n
 >typedArrays : any[]
 >7 : 7
 >Float64Array.from(obj, mapFn) : Float64Array
->Float64Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Float64Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: ArrayLike<number>): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: Iterable<number>): Float64Array; }
+>Float64Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Float64Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: ArrayLike<number>): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: Iterable<number>): Float64Array; }
 >Float64Array : Float64ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Float64Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: ArrayLike<number>): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: Iterable<number>): Float64Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Float64Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: ArrayLike<number>): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: Iterable<number>): Float64Array; }
 >obj : ArrayLike<number>
 >mapFn : (n: number, v: number) => number
 
@@ -853,9 +853,9 @@ function CreateTypedArraysFromMapFn(obj:ArrayLike<number>, mapFn: (n:number, v:n
 >typedArrays : any[]
 >8 : 8
 >Uint8ClampedArray.from(obj, mapFn) : Uint8ClampedArray
->Uint8ClampedArray.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: ArrayLike<number>): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: Iterable<number>): Uint8ClampedArray; }
+>Uint8ClampedArray.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: ArrayLike<number>): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: Iterable<number>): Uint8ClampedArray; }
 >Uint8ClampedArray : Uint8ClampedArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: ArrayLike<number>): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: Iterable<number>): Uint8ClampedArray; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: ArrayLike<number>): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: Iterable<number>): Uint8ClampedArray; }
 >obj : ArrayLike<number>
 >mapFn : (n: number, v: number) => number
 
@@ -882,9 +882,9 @@ function CreateTypedArraysFromThisObj(obj:ArrayLike<number>, mapFn: (n:number, v
 >typedArrays : any[]
 >0 : 0
 >Int8Array.from(obj, mapFn, thisArg) : Int8Array
->Int8Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int8Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: ArrayLike<number>): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: Iterable<number>): Int8Array; }
+>Int8Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int8Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: ArrayLike<number>): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: Iterable<number>): Int8Array; }
 >Int8Array : Int8ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int8Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: ArrayLike<number>): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: Iterable<number>): Int8Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int8Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: ArrayLike<number>): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int8Array; (arrayLike: Iterable<number>): Int8Array; }
 >obj : ArrayLike<number>
 >mapFn : (n: number, v: number) => number
 >thisArg : {}
@@ -895,9 +895,9 @@ function CreateTypedArraysFromThisObj(obj:ArrayLike<number>, mapFn: (n:number, v
 >typedArrays : any[]
 >1 : 1
 >Uint8Array.from(obj, mapFn, thisArg) : Uint8Array
->Uint8Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: ArrayLike<number>): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: Iterable<number>): Uint8Array; }
+>Uint8Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint8Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: ArrayLike<number>): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: Iterable<number>): Uint8Array; }
 >Uint8Array : Uint8ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: ArrayLike<number>): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: Iterable<number>): Uint8Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint8Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: ArrayLike<number>): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint8Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8Array; (arrayLike: Iterable<number>): Uint8Array; }
 >obj : ArrayLike<number>
 >mapFn : (n: number, v: number) => number
 >thisArg : {}
@@ -908,9 +908,9 @@ function CreateTypedArraysFromThisObj(obj:ArrayLike<number>, mapFn: (n:number, v
 >typedArrays : any[]
 >2 : 2
 >Int16Array.from(obj, mapFn, thisArg) : Int16Array
->Int16Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int16Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: ArrayLike<number>): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: Iterable<number>): Int16Array; }
+>Int16Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int16Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: ArrayLike<number>): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: Iterable<number>): Int16Array; }
 >Int16Array : Int16ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int16Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: ArrayLike<number>): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: Iterable<number>): Int16Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int16Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: ArrayLike<number>): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int16Array; (arrayLike: Iterable<number>): Int16Array; }
 >obj : ArrayLike<number>
 >mapFn : (n: number, v: number) => number
 >thisArg : {}
@@ -921,9 +921,9 @@ function CreateTypedArraysFromThisObj(obj:ArrayLike<number>, mapFn: (n:number, v
 >typedArrays : any[]
 >3 : 3
 >Uint16Array.from(obj, mapFn, thisArg) : Uint16Array
->Uint16Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint16Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: ArrayLike<number>): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: Iterable<number>): Uint16Array; }
+>Uint16Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint16Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: ArrayLike<number>): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: Iterable<number>): Uint16Array; }
 >Uint16Array : Uint16ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint16Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: ArrayLike<number>): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: Iterable<number>): Uint16Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint16Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: ArrayLike<number>): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint16Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint16Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint16Array; (arrayLike: Iterable<number>): Uint16Array; }
 >obj : ArrayLike<number>
 >mapFn : (n: number, v: number) => number
 >thisArg : {}
@@ -934,9 +934,9 @@ function CreateTypedArraysFromThisObj(obj:ArrayLike<number>, mapFn: (n:number, v
 >typedArrays : any[]
 >4 : 4
 >Int32Array.from(obj, mapFn, thisArg) : Int32Array
->Int32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: ArrayLike<number>): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: Iterable<number>): Int32Array; }
+>Int32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: ArrayLike<number>): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: Iterable<number>): Int32Array; }
 >Int32Array : Int32ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Int32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: ArrayLike<number>): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: Iterable<number>): Int32Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Int32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: ArrayLike<number>): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Int32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Int32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Int32Array; (arrayLike: Iterable<number>): Int32Array; }
 >obj : ArrayLike<number>
 >mapFn : (n: number, v: number) => number
 >thisArg : {}
@@ -947,9 +947,9 @@ function CreateTypedArraysFromThisObj(obj:ArrayLike<number>, mapFn: (n:number, v
 >typedArrays : any[]
 >5 : 5
 >Uint32Array.from(obj, mapFn, thisArg) : Uint32Array
->Uint32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: ArrayLike<number>): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: Iterable<number>): Uint32Array; }
+>Uint32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: ArrayLike<number>): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: Iterable<number>): Uint32Array; }
 >Uint32Array : Uint32ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: ArrayLike<number>): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: Iterable<number>): Uint32Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: ArrayLike<number>): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint32Array; (arrayLike: Iterable<number>): Uint32Array; }
 >obj : ArrayLike<number>
 >mapFn : (n: number, v: number) => number
 >thisArg : {}
@@ -960,9 +960,9 @@ function CreateTypedArraysFromThisObj(obj:ArrayLike<number>, mapFn: (n:number, v
 >typedArrays : any[]
 >6 : 6
 >Float32Array.from(obj, mapFn, thisArg) : Float32Array
->Float32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Float32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: ArrayLike<number>): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: Iterable<number>): Float32Array; }
+>Float32Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Float32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: ArrayLike<number>): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: Iterable<number>): Float32Array; }
 >Float32Array : Float32ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Float32Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: ArrayLike<number>): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: Iterable<number>): Float32Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Float32Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: ArrayLike<number>): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Float32Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float32Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float32Array; (arrayLike: Iterable<number>): Float32Array; }
 >obj : ArrayLike<number>
 >mapFn : (n: number, v: number) => number
 >thisArg : {}
@@ -973,9 +973,9 @@ function CreateTypedArraysFromThisObj(obj:ArrayLike<number>, mapFn: (n:number, v
 >typedArrays : any[]
 >7 : 7
 >Float64Array.from(obj, mapFn, thisArg) : Float64Array
->Float64Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Float64Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: ArrayLike<number>): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: Iterable<number>): Float64Array; }
+>Float64Array.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Float64Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: ArrayLike<number>): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: Iterable<number>): Float64Array; }
 >Float64Array : Float64ArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Float64Array; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: ArrayLike<number>): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: Iterable<number>): Float64Array; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Float64Array; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: ArrayLike<number>): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Float64Array; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Float64Array; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Float64Array; (arrayLike: Iterable<number>): Float64Array; }
 >obj : ArrayLike<number>
 >mapFn : (n: number, v: number) => number
 >thisArg : {}
@@ -986,9 +986,9 @@ function CreateTypedArraysFromThisObj(obj:ArrayLike<number>, mapFn: (n:number, v
 >typedArrays : any[]
 >8 : 8
 >Uint8ClampedArray.from(obj, mapFn, thisArg) : Uint8ClampedArray
->Uint8ClampedArray.from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: ArrayLike<number>): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: Iterable<number>): Uint8ClampedArray; }
+>Uint8ClampedArray.from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: ArrayLike<number>): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: Iterable<number>): Uint8ClampedArray; }
 >Uint8ClampedArray : Uint8ClampedArrayConstructor
->from : { (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: ArrayLike<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: ArrayLike<number>): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: undefined, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: Iterable<number>): Uint8ClampedArray; }
+>from : { (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: ArrayLike<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: ArrayLike<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: ArrayLike<number>): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number): Uint8ClampedArray; (arrayLike: Iterable<number>, mapfn: (this: void, v: number, k: number) => number, thisArg: undefined): Uint8ClampedArray; <Z>(arrayLike: Iterable<number>, mapfn: (this: Z, v: number, k: number) => number, thisArg: Z): Uint8ClampedArray; (arrayLike: Iterable<number>): Uint8ClampedArray; }
 >obj : ArrayLike<number>
 >mapFn : (n: number, v: number) => number
 >thisArg : {}
diff --git a/tests/cases/fourslash/completionEntryForUnionMethod.ts b/tests/cases/fourslash/completionEntryForUnionMethod.ts
index 2dc80e757b2..8c112a6d52e 100644
--- a/tests/cases/fourslash/completionEntryForUnionMethod.ts
+++ b/tests/cases/fourslash/completionEntryForUnionMethod.ts
@@ -5,7 +5,7 @@
 
 goTo.marker();
 verify.quickInfoIs(
-    "(property) map: {\n    <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U, U];\n    <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U];\n    <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U];\n    <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U];\n    <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U];\n    <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U];\n    <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U];\n    <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U];\n    <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U];\n    <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U];\n    <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U];\n    <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U];\n    <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): U[];\n    <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): U[];\n    <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[];\n} | {\n    <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U];\n    <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U];\n    <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U];\n    <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U];\n    <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U];\n    <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U];\n    <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U];\n    <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U];\n    <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U];\n    <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U];\n    <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U];\n    <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U];\n    <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[];\n    <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[];\n    <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[];\n}",
+    "(property) map: {\n    <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U, U];\n    <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U];\n    <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U];\n    <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U];\n    <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U];\n    <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U];\n    <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U];\n    <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U];\n    <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U];\n    <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U];\n    <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U];\n    <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U];\n    <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U): U[];\n    <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): U[];\n    <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[];\n} | {\n    <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U];\n    <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U];\n    <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U];\n    <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U];\n    <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U];\n    <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U];\n    <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U];\n    <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U];\n    <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U];\n    <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U];\n    <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U];\n    <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U];\n    <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[];\n    <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[];\n    <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[];\n}",
     "Calls a defined callback function on each element of an array, and returns an array that contains the results.\nCalls a defined callback function on each element of an array, and returns an array that contains the results.\nCalls a defined callback function on each element of an array, and returns an array that contains the results.\nCalls a defined callback function on each element of an array, and returns an array that contains the results.\nCalls a defined callback function on each element of an array, and returns an array that contains the results.");
 
-verify.completionListContains('map', "(property) map: {\n    <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U, U];\n    <U>(this: [string, string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U];\n    <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U];\n    <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U, U];\n    <U>(this: [string, string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U];\n    <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U];\n    <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U, U];\n    <U>(this: [string, string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U];\n    <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U];\n    <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): [U, U];\n    <U>(this: [string, string], callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U];\n    <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U];\n    <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U): U[];\n    <U>(callbackfn: (this: undefined, value: string, index: number, array: string[]) => U, thisArg: undefined): U[];\n    <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[];\n} | {\n    <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U, U];\n    <U>(this: [number, number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U];\n    <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U];\n    <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U, U];\n    <U>(this: [number, number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U];\n    <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U];\n    <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U, U];\n    <U>(this: [number, number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U];\n    <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U];\n    <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): [U, U];\n    <U>(this: [number, number], callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U];\n    <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U];\n    <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U): U[];\n    <U>(callbackfn: (this: undefined, value: number, index: number, array: number[]) => U, thisArg: undefined): U[];\n    <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[];\n}");
+verify.completionListContains('map', "(property) map: {\n    <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U, U];\n    <U>(this: [string, string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U, U];\n    <Z, U>(this: [string, string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U, U];\n    <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U, U];\n    <U>(this: [string, string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U, U];\n    <Z, U>(this: [string, string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U, U];\n    <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U, U];\n    <U>(this: [string, string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U, U];\n    <Z, U>(this: [string, string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U, U];\n    <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U): [U, U];\n    <U>(this: [string, string], callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): [U, U];\n    <Z, U>(this: [string, string], callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): [U, U];\n    <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U): U[];\n    <U>(callbackfn: (this: void, value: string, index: number, array: string[]) => U, thisArg: undefined): U[];\n    <Z, U>(callbackfn: (this: Z, value: string, index: number, array: string[]) => U, thisArg: Z): U[];\n} | {\n    <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U, U];\n    <U>(this: [number, number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U, U];\n    <Z, U>(this: [number, number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U, U];\n    <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U, U];\n    <U>(this: [number, number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U, U];\n    <Z, U>(this: [number, number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U, U];\n    <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U, U];\n    <U>(this: [number, number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U, U];\n    <Z, U>(this: [number, number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U, U];\n    <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U): [U, U];\n    <U>(this: [number, number], callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): [U, U];\n    <Z, U>(this: [number, number], callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): [U, U];\n    <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U): U[];\n    <U>(callbackfn: (this: void, value: number, index: number, array: number[]) => U, thisArg: undefined): U[];\n    <Z, U>(callbackfn: (this: Z, value: number, index: number, array: number[]) => U, thisArg: Z): U[];\n}");