diff --git a/tests/baselines/reference/augmentExportEquals3.errors.txt b/tests/baselines/reference/augmentExportEquals3.errors.txt
deleted file mode 100644
index 9fe63d84fb6..00000000000
--- a/tests/baselines/reference/augmentExportEquals3.errors.txt
+++ /dev/null
@@ -1,31 +0,0 @@
-tests/cases/compiler/file2.ts(6,15): error TS2665: Module augmentation cannot introduce new names in the top level scope.
-tests/cases/compiler/file2.ts(7,9): error TS2665: Module augmentation cannot introduce new names in the top level scope.
-
-
-==== tests/cases/compiler/file1.ts (0 errors) ====
-    
-    function foo() {}
-    namespace foo {
-        export var v = 1;
-    }
-    export = foo;
-    
-==== tests/cases/compiler/file2.ts (2 errors) ====
-    import x = require("./file1"); 
-    x.b = 1;
-    
-    // OK - './file1' is a namespace
-    declare module "./file1" {
-        interface A { a }
-                  ~
-!!! error TS2665: Module augmentation cannot introduce new names in the top level scope.
-        let b: number;
-            ~
-!!! error TS2665: Module augmentation cannot introduce new names in the top level scope.
-    }
-    
-==== tests/cases/compiler/file3.ts (0 errors) ====
-    import * as x from "./file1";
-    import "./file2";
-    let a: x.A;
-    let b = x.b;
\ No newline at end of file
diff --git a/tests/baselines/reference/augmentExportEquals3_1.errors.txt b/tests/baselines/reference/augmentExportEquals3_1.errors.txt
deleted file mode 100644
index 9fb0ce5f169..00000000000
--- a/tests/baselines/reference/augmentExportEquals3_1.errors.txt
+++ /dev/null
@@ -1,34 +0,0 @@
-tests/cases/compiler/file2.ts(7,15): error TS2665: Module augmentation cannot introduce new names in the top level scope.
-tests/cases/compiler/file2.ts(8,9): error TS2665: Module augmentation cannot introduce new names in the top level scope.
-
-
-==== tests/cases/compiler/file1.d.ts (0 errors) ====
-    declare module "file1" {
-        function foo(): void;
-        namespace foo {
-            export var v: number;
-        }
-        export = foo;
-    }
-    
-    
-==== tests/cases/compiler/file2.ts (2 errors) ====
-    /// <reference path="file1.d.ts"/>
-    import x = require("file1"); 
-    x.b = 1;
-    
-    // OK - './file1' is a namespace
-    declare module "file1" {
-        interface A { a }
-                  ~
-!!! error TS2665: Module augmentation cannot introduce new names in the top level scope.
-        let b: number;
-            ~
-!!! error TS2665: Module augmentation cannot introduce new names in the top level scope.
-    }
-    
-==== tests/cases/compiler/file3.ts (0 errors) ====
-    import * as x from "file1";
-    import "file2";
-    let a: x.A;
-    let b = x.b;
\ No newline at end of file
diff --git a/tests/baselines/reference/augmentExportEquals4.errors.txt b/tests/baselines/reference/augmentExportEquals4.errors.txt
deleted file mode 100644
index 20f7cc32d9f..00000000000
--- a/tests/baselines/reference/augmentExportEquals4.errors.txt
+++ /dev/null
@@ -1,31 +0,0 @@
-tests/cases/compiler/file2.ts(6,15): error TS2665: Module augmentation cannot introduce new names in the top level scope.
-tests/cases/compiler/file2.ts(7,9): error TS2665: Module augmentation cannot introduce new names in the top level scope.
-
-
-==== tests/cases/compiler/file1.ts (0 errors) ====
-    
-    class foo {}
-    namespace foo {
-        export var v = 1;
-    }
-    export = foo;
-    
-==== tests/cases/compiler/file2.ts (2 errors) ====
-    import x = require("./file1"); 
-    x.b = 1;
-    
-    // OK - './file1' is a namespace
-    declare module "./file1" {
-        interface A { a }
-                  ~
-!!! error TS2665: Module augmentation cannot introduce new names in the top level scope.
-        let b: number;
-            ~
-!!! error TS2665: Module augmentation cannot introduce new names in the top level scope.
-    }
-    
-==== tests/cases/compiler/file3.ts (0 errors) ====
-    import * as x from "./file1";
-    import "./file2";
-    let a: x.A;
-    let b = x.b;
\ No newline at end of file
diff --git a/tests/baselines/reference/augmentExportEquals4_1.errors.txt b/tests/baselines/reference/augmentExportEquals4_1.errors.txt
deleted file mode 100644
index a401f7a24cf..00000000000
--- a/tests/baselines/reference/augmentExportEquals4_1.errors.txt
+++ /dev/null
@@ -1,35 +0,0 @@
-tests/cases/compiler/file2.ts(7,15): error TS2665: Module augmentation cannot introduce new names in the top level scope.
-tests/cases/compiler/file2.ts(8,9): error TS2665: Module augmentation cannot introduce new names in the top level scope.
-
-
-==== tests/cases/compiler/file1.d.ts (0 errors) ====
-    
-    declare module "file1" {
-        class foo {}
-        namespace foo {
-            export var v: number;
-        }
-        export = foo;
-    }
-    
-    
-==== tests/cases/compiler/file2.ts (2 errors) ====
-    /// <reference path="file1.d.ts"/>
-    import x = require("file1"); 
-    x.b = 1;
-    
-    // OK - './file1' is a namespace
-    declare module "file1" {
-        interface A { a }
-                  ~
-!!! error TS2665: Module augmentation cannot introduce new names in the top level scope.
-        let b: number;
-            ~
-!!! error TS2665: Module augmentation cannot introduce new names in the top level scope.
-    }
-    
-==== tests/cases/compiler/file3.ts (0 errors) ====
-    import * as x from "file1";
-    import "file2";
-    let a: x.A;
-    let b = x.b;
\ No newline at end of file
diff --git a/tests/baselines/reference/moduleAugmentationCollidingNamesInAugmentation1.errors.txt b/tests/baselines/reference/moduleAugmentationCollidingNamesInAugmentation1.errors.txt
deleted file mode 100644
index 8e1bc337b39..00000000000
--- a/tests/baselines/reference/moduleAugmentationCollidingNamesInAugmentation1.errors.txt
+++ /dev/null
@@ -1,40 +0,0 @@
-tests/cases/compiler/map1.ts(7,15): error TS2665: Module augmentation cannot introduce new names in the top level scope.
-tests/cases/compiler/map2.ts(6,15): error TS2665: Module augmentation cannot introduce new names in the top level scope.
-
-
-==== tests/cases/compiler/map1.ts (1 errors) ====
-    
-    import { Observable } from "./observable"
-    
-    (<any>Observable.prototype).map = function() { }
-    
-    declare module "./observable" {
-        interface I {x0}
-                  ~
-!!! error TS2665: Module augmentation cannot introduce new names in the top level scope.
-    }
-    
-==== tests/cases/compiler/map2.ts (1 errors) ====
-    import { Observable } from "./observable"
-    
-    (<any>Observable.prototype).map = function() { }
-    
-    declare module "./observable" {
-        interface I {x1}
-                  ~
-!!! error TS2665: Module augmentation cannot introduce new names in the top level scope.
-    }
-    
-    
-==== tests/cases/compiler/observable.ts (0 errors) ====
-    export declare class Observable<T> {
-        filter(pred: (e:T) => boolean): Observable<T>;
-    }
-    
-==== tests/cases/compiler/main.ts (0 errors) ====
-    import { Observable } from "./observable"
-    import "./map1";
-    import "./map2";
-    
-    let x: Observable<number>;
-    
\ No newline at end of file
diff --git a/tests/baselines/reference/moduleAugmentationNoNewNames.errors.txt b/tests/baselines/reference/moduleAugmentationNoNewNames.errors.txt
deleted file mode 100644
index 7c7f17cd641..00000000000
--- a/tests/baselines/reference/moduleAugmentationNoNewNames.errors.txt
+++ /dev/null
@@ -1,47 +0,0 @@
-tests/cases/compiler/map.ts(10,11): error TS2665: Module augmentation cannot introduce new names in the top level scope.
-tests/cases/compiler/map.ts(11,9): error TS2665: Module augmentation cannot introduce new names in the top level scope.
-tests/cases/compiler/map.ts(11,20): error TS2665: Module augmentation cannot introduce new names in the top level scope.
-tests/cases/compiler/map.ts(12,13): error TS2665: Module augmentation cannot introduce new names in the top level scope.
-tests/cases/compiler/map.ts(12,19): error TS2665: Module augmentation cannot introduce new names in the top level scope.
-tests/cases/compiler/map.ts(13,12): error TS2665: Module augmentation cannot introduce new names in the top level scope.
-
-
-==== tests/cases/compiler/map.ts (6 errors) ====
-    
-    import { Observable } from "./observable"
-    
-    (<any>Observable.prototype).map = function() { }
-    
-    declare module "./observable" {
-        interface Observable<T> {
-            map<U>(proj: (e:T) => U): Observable<U>
-        }
-        class Bar {}
-              ~~~
-!!! error TS2665: Module augmentation cannot introduce new names in the top level scope.
-        let y: number, z: string;
-            ~
-!!! error TS2665: Module augmentation cannot introduce new names in the top level scope.
-                       ~
-!!! error TS2665: Module augmentation cannot introduce new names in the top level scope.
-        let {a: x, b: x1}: {a: number, b: number};
-                ~
-!!! error TS2665: Module augmentation cannot introduce new names in the top level scope.
-                      ~~
-!!! error TS2665: Module augmentation cannot introduce new names in the top level scope.
-        module Z {}
-               ~
-!!! error TS2665: Module augmentation cannot introduce new names in the top level scope.
-    }
-    
-==== tests/cases/compiler/observable.ts (0 errors) ====
-    export declare class Observable<T> {
-        filter(pred: (e:T) => boolean): Observable<T>;
-    }
-    
-==== tests/cases/compiler/main.ts (0 errors) ====
-    import { Observable } from "./observable"
-    import "./map";
-    
-    let x: Observable<number>;
-    let y = x.map(x => x + 1);
\ No newline at end of file
diff --git a/tests/baselines/reference/newNamesInGlobalAugmentations1.symbols b/tests/baselines/reference/newNamesInGlobalAugmentations1.symbols
deleted file mode 100644
index 955061ee116..00000000000
--- a/tests/baselines/reference/newNamesInGlobalAugmentations1.symbols
+++ /dev/null
@@ -1,53 +0,0 @@
-=== tests/cases/compiler/f1.d.ts ===
-
-export {};
-
-declare module M.M1 {
->M : Symbol(M, Decl(f1.d.ts, 1, 10))
->M1 : Symbol(M1, Decl(f1.d.ts, 3, 17))
-
-    export let x: number;
->x : Symbol(x, Decl(f1.d.ts, 4, 14))
-}
-declare global {
->global : Symbol(, Decl(f1.d.ts, 5, 1))
-
-    interface SymbolConstructor {
->SymbolConstructor : Symbol(SymbolConstructor, Decl(lib.es2015.symbol.wellknown.d.ts, --, --), Decl(lib.es2015.iterable.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --), Decl(f1.d.ts, 6, 16))
-
-        observable: symbol;
->observable : Symbol(SymbolConstructor.observable, Decl(f1.d.ts, 7, 33))
-    }
-    class Cls {x}
->Cls : Symbol(Cls, Decl(f1.d.ts, 9, 5))
->x : Symbol(Cls.x, Decl(f1.d.ts, 10, 15))
-
-    let [a, b]: number[];
->a : Symbol(a, Decl(f1.d.ts, 11, 9))
->b : Symbol(b, Decl(f1.d.ts, 11, 11))
-
-    export import X = M.M1.x;
->X : Symbol(X, Decl(f1.d.ts, 11, 25))
->M : Symbol(M, Decl(f1.d.ts, 1, 10))
->M1 : Symbol(M.M1, Decl(f1.d.ts, 3, 17))
->x : Symbol(X, Decl(f1.d.ts, 4, 14))
-}
-
-=== tests/cases/compiler/main.ts ===
-
-Symbol.observable;
->Symbol.observable : Symbol(SymbolConstructor.observable, Decl(f1.d.ts, 7, 33))
->Symbol : Symbol(Symbol, Decl(lib.es2015.symbol.wellknown.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --))
->observable : Symbol(SymbolConstructor.observable, Decl(f1.d.ts, 7, 33))
-
-new Cls().x
->new Cls().x : Symbol(Cls.x, Decl(f1.d.ts, 10, 15))
->Cls : Symbol(Cls, Decl(f1.d.ts, 9, 5))
->x : Symbol(Cls.x, Decl(f1.d.ts, 10, 15))
-
-let c = a + b + X;
->c : Symbol(c, Decl(main.ts, 3, 3))
->a : Symbol(a, Decl(f1.d.ts, 11, 9))
->b : Symbol(b, Decl(f1.d.ts, 11, 11))
->X : Symbol(X, Decl(f1.d.ts, 11, 25))
-
diff --git a/tests/baselines/reference/newNamesInGlobalAugmentations1.types b/tests/baselines/reference/newNamesInGlobalAugmentations1.types
deleted file mode 100644
index a9b879fb4c5..00000000000
--- a/tests/baselines/reference/newNamesInGlobalAugmentations1.types
+++ /dev/null
@@ -1,56 +0,0 @@
-=== tests/cases/compiler/f1.d.ts ===
-
-export {};
-
-declare module M.M1 {
->M : typeof M
->M1 : typeof M1
-
-    export let x: number;
->x : number
-}
-declare global {
->global : any
-
-    interface SymbolConstructor {
->SymbolConstructor : SymbolConstructor
-
-        observable: symbol;
->observable : symbol
-    }
-    class Cls {x}
->Cls : Cls
->x : any
-
-    let [a, b]: number[];
->a : number
->b : number
-
-    export import X = M.M1.x;
->X : number
->M : typeof M
->M1 : typeof M.M1
->x : number
-}
-
-=== tests/cases/compiler/main.ts ===
-
-Symbol.observable;
->Symbol.observable : symbol
->Symbol : SymbolConstructor
->observable : symbol
-
-new Cls().x
->new Cls().x : any
->new Cls() : Cls
->Cls : typeof Cls
->x : any
-
-let c = a + b + X;
->c : number
->a + b + X : number
->a + b : number
->a : number
->b : number
->X : number
-