diff --git a/tests/baselines/reference/NonNullableInNonStrictMode.js b/tests/baselines/reference/NonNullableInNonStrictMode.js
deleted file mode 100644
index e5a577ed7ba..00000000000
--- a/tests/baselines/reference/NonNullableInNonStrictMode.js
+++ /dev/null
@@ -1,21 +0,0 @@
-//// [NonNullableInNonStrictMode.ts]
-// These should all resolve to never
-
-type T0 = NonNullable<null>;
-type T1 = NonNullable<undefined>;
-type T2 = null & {};
-type T3 = undefined & {};
-type T4 = null & undefined;
-type T6 = null & { a: string } & {};
-
-// Repro from #50519
-
-type NonNullableNew<T> = T & {};
-type NonNullableOld<T> = T extends null | undefined ? never : T;
-
-type IsNullWithoutStrictNullChecks = NonNullableNew<null>;
-type IsAlwaysNever = NonNullableOld<null>;
-
-
-//// [NonNullableInNonStrictMode.js]
-// These should all resolve to never
diff --git a/tests/baselines/reference/NonNullableInNonStrictMode.symbols b/tests/baselines/reference/NonNullableInNonStrictMode.symbols
deleted file mode 100644
index b01bdc9cfbe..00000000000
--- a/tests/baselines/reference/NonNullableInNonStrictMode.symbols
+++ /dev/null
@@ -1,45 +0,0 @@
-=== tests/cases/compiler/NonNullableInNonStrictMode.ts ===
-// These should all resolve to never
-
-type T0 = NonNullable<null>;
->T0 : Symbol(T0, Decl(NonNullableInNonStrictMode.ts, 0, 0))
->NonNullable : Symbol(NonNullable, Decl(lib.es5.d.ts, --, --))
-
-type T1 = NonNullable<undefined>;
->T1 : Symbol(T1, Decl(NonNullableInNonStrictMode.ts, 2, 28))
->NonNullable : Symbol(NonNullable, Decl(lib.es5.d.ts, --, --))
-
-type T2 = null & {};
->T2 : Symbol(T2, Decl(NonNullableInNonStrictMode.ts, 3, 33))
-
-type T3 = undefined & {};
->T3 : Symbol(T3, Decl(NonNullableInNonStrictMode.ts, 4, 20))
-
-type T4 = null & undefined;
->T4 : Symbol(T4, Decl(NonNullableInNonStrictMode.ts, 5, 25))
-
-type T6 = null & { a: string } & {};
->T6 : Symbol(T6, Decl(NonNullableInNonStrictMode.ts, 6, 27))
->a : Symbol(a, Decl(NonNullableInNonStrictMode.ts, 7, 18))
-
-// Repro from #50519
-
-type NonNullableNew<T> = T & {};
->NonNullableNew : Symbol(NonNullableNew, Decl(NonNullableInNonStrictMode.ts, 7, 36))
->T : Symbol(T, Decl(NonNullableInNonStrictMode.ts, 11, 20))
->T : Symbol(T, Decl(NonNullableInNonStrictMode.ts, 11, 20))
-
-type NonNullableOld<T> = T extends null | undefined ? never : T;
->NonNullableOld : Symbol(NonNullableOld, Decl(NonNullableInNonStrictMode.ts, 11, 32))
->T : Symbol(T, Decl(NonNullableInNonStrictMode.ts, 12, 20))
->T : Symbol(T, Decl(NonNullableInNonStrictMode.ts, 12, 20))
->T : Symbol(T, Decl(NonNullableInNonStrictMode.ts, 12, 20))
-
-type IsNullWithoutStrictNullChecks = NonNullableNew<null>;
->IsNullWithoutStrictNullChecks : Symbol(IsNullWithoutStrictNullChecks, Decl(NonNullableInNonStrictMode.ts, 12, 64))
->NonNullableNew : Symbol(NonNullableNew, Decl(NonNullableInNonStrictMode.ts, 7, 36))
-
-type IsAlwaysNever = NonNullableOld<null>;
->IsAlwaysNever : Symbol(IsAlwaysNever, Decl(NonNullableInNonStrictMode.ts, 14, 58))
->NonNullableOld : Symbol(NonNullableOld, Decl(NonNullableInNonStrictMode.ts, 11, 32))
-
diff --git a/tests/baselines/reference/NonNullableInNonStrictMode.types b/tests/baselines/reference/NonNullableInNonStrictMode.types
deleted file mode 100644
index cb2894ce052..00000000000
--- a/tests/baselines/reference/NonNullableInNonStrictMode.types
+++ /dev/null
@@ -1,43 +0,0 @@
-=== tests/cases/compiler/NonNullableInNonStrictMode.ts ===
-// These should all resolve to never
-
-type T0 = NonNullable<null>;
->T0 : never
->null : null
-
-type T1 = NonNullable<undefined>;
->T1 : never
-
-type T2 = null & {};
->T2 : never
->null : null
-
-type T3 = undefined & {};
->T3 : never
-
-type T4 = null & undefined;
->T4 : never
->null : null
-
-type T6 = null & { a: string } & {};
->T6 : never
->null : null
->a : string
-
-// Repro from #50519
-
-type NonNullableNew<T> = T & {};
->NonNullableNew : NonNullableNew<T>
-
-type NonNullableOld<T> = T extends null | undefined ? never : T;
->NonNullableOld : NonNullableOld<T>
->null : null
-
-type IsNullWithoutStrictNullChecks = NonNullableNew<null>;
->IsNullWithoutStrictNullChecks : never
->null : null
-
-type IsAlwaysNever = NonNullableOld<null>;
->IsAlwaysNever : never
->null : null
-
diff --git a/tests/baselines/reference/cancellationWhenfindingAllRefsOnDefinition.3.baseline.jsonc b/tests/baselines/reference/cancellationWhenfindingAllRefsOnDefinition.3.baseline.jsonc
deleted file mode 100644
index fac647eb0ac..00000000000
--- a/tests/baselines/reference/cancellationWhenfindingAllRefsOnDefinition.3.baseline.jsonc
+++ /dev/null
@@ -1,116 +0,0 @@
-// === /tests/cases/fourslash/findAllRefsOnDefinition-import.ts ===
-// export class Test{
-// 
-//     constructor(){
-// 
-//     }
-// 
-//     public /*FIND ALL REFS*/[|start|](){
-//         return this;
-//     }
-// 
-//     public stop(){
-//         return this;
-//     }
-// }
-
-// === /tests/cases/fourslash/findAllRefsOnDefinition.ts ===
-// import Second = require("./findAllRefsOnDefinition-import");
-// 
-// var second = new Second.Test()
-// second.[|start|]();
-// second.stop();
-
-[
-  {
-    "definition": {
-      "containerKind": "",
-      "containerName": "",
-      "fileName": "/tests/cases/fourslash/findAllRefsOnDefinition-import.ts",
-      "kind": "method",
-      "name": "(method) Test.start(): this",
-      "textSpan": {
-        "start": 58,
-        "length": 5
-      },
-      "displayParts": [
-        {
-          "text": "(",
-          "kind": "punctuation"
-        },
-        {
-          "text": "method",
-          "kind": "text"
-        },
-        {
-          "text": ")",
-          "kind": "punctuation"
-        },
-        {
-          "text": " ",
-          "kind": "space"
-        },
-        {
-          "text": "Test",
-          "kind": "className"
-        },
-        {
-          "text": ".",
-          "kind": "punctuation"
-        },
-        {
-          "text": "start",
-          "kind": "methodName"
-        },
-        {
-          "text": "(",
-          "kind": "punctuation"
-        },
-        {
-          "text": ")",
-          "kind": "punctuation"
-        },
-        {
-          "text": ":",
-          "kind": "punctuation"
-        },
-        {
-          "text": " ",
-          "kind": "space"
-        },
-        {
-          "text": "this",
-          "kind": "keyword"
-        }
-      ],
-      "contextSpan": {
-        "start": 51,
-        "length": 42
-      }
-    },
-    "references": [
-      {
-        "textSpan": {
-          "start": 58,
-          "length": 5
-        },
-        "fileName": "/tests/cases/fourslash/findAllRefsOnDefinition-import.ts",
-        "contextSpan": {
-          "start": 51,
-          "length": 42
-        },
-        "isWriteAccess": true,
-        "isDefinition": true
-      },
-      {
-        "textSpan": {
-          "start": 100,
-          "length": 5
-        },
-        "fileName": "/tests/cases/fourslash/findAllRefsOnDefinition.ts",
-        "isWriteAccess": false,
-        "isDefinition": false
-      }
-    ]
-  }
-]
\ No newline at end of file
diff --git a/tests/baselines/reference/findReferencesAfterEdit.2.baseline.jsonc b/tests/baselines/reference/findReferencesAfterEdit.2.baseline.jsonc
deleted file mode 100644
index c4ffdfb45bd..00000000000
--- a/tests/baselines/reference/findReferencesAfterEdit.2.baseline.jsonc
+++ /dev/null
@@ -1,195 +0,0 @@
-// === /tests/cases/fourslash/a.ts ===
-// interface A {
-//     /*FIND ALL REFS*/[|foo|]: string;
-// }
-
-// === /tests/cases/fourslash/b.ts ===
-// ///<reference path='a.ts'/>
-// 
-// 
-// function foo(x: A) {
-//     x.[|foo|]
-// }
-
-[
-  {
-    "definition": {
-      "containerKind": "",
-      "containerName": "",
-      "fileName": "/tests/cases/fourslash/a.ts",
-      "kind": "property",
-      "name": "(property) A.foo: string",
-      "textSpan": {
-        "start": 18,
-        "length": 3
-      },
-      "displayParts": [
-        {
-          "text": "(",
-          "kind": "punctuation"
-        },
-        {
-          "text": "property",
-          "kind": "text"
-        },
-        {
-          "text": ")",
-          "kind": "punctuation"
-        },
-        {
-          "text": " ",
-          "kind": "space"
-        },
-        {
-          "text": "A",
-          "kind": "interfaceName"
-        },
-        {
-          "text": ".",
-          "kind": "punctuation"
-        },
-        {
-          "text": "foo",
-          "kind": "propertyName"
-        },
-        {
-          "text": ":",
-          "kind": "punctuation"
-        },
-        {
-          "text": " ",
-          "kind": "space"
-        },
-        {
-          "text": "string",
-          "kind": "keyword"
-        }
-      ],
-      "contextSpan": {
-        "start": 18,
-        "length": 12
-      }
-    },
-    "references": [
-      {
-        "textSpan": {
-          "start": 18,
-          "length": 3
-        },
-        "fileName": "/tests/cases/fourslash/a.ts",
-        "contextSpan": {
-          "start": 18,
-          "length": 12
-        },
-        "isWriteAccess": false,
-        "isDefinition": true
-      },
-      {
-        "textSpan": {
-          "start": 57,
-          "length": 3
-        },
-        "fileName": "/tests/cases/fourslash/b.ts",
-        "isWriteAccess": false,
-        "isDefinition": false
-      }
-    ]
-  }
-]
-
-// === /tests/cases/fourslash/a.ts ===
-// interface A {
-//     [|foo|]: string;
-// }
-
-// === /tests/cases/fourslash/b.ts ===
-// ///<reference path='a.ts'/>
-// 
-// 
-// function foo(x: A) {
-//     x./*FIND ALL REFS*/[|foo|]
-// }
-
-[
-  {
-    "definition": {
-      "containerKind": "",
-      "containerName": "",
-      "fileName": "/tests/cases/fourslash/a.ts",
-      "kind": "property",
-      "name": "(property) A.foo: string",
-      "textSpan": {
-        "start": 18,
-        "length": 3
-      },
-      "displayParts": [
-        {
-          "text": "(",
-          "kind": "punctuation"
-        },
-        {
-          "text": "property",
-          "kind": "text"
-        },
-        {
-          "text": ")",
-          "kind": "punctuation"
-        },
-        {
-          "text": " ",
-          "kind": "space"
-        },
-        {
-          "text": "A",
-          "kind": "interfaceName"
-        },
-        {
-          "text": ".",
-          "kind": "punctuation"
-        },
-        {
-          "text": "foo",
-          "kind": "propertyName"
-        },
-        {
-          "text": ":",
-          "kind": "punctuation"
-        },
-        {
-          "text": " ",
-          "kind": "space"
-        },
-        {
-          "text": "string",
-          "kind": "keyword"
-        }
-      ],
-      "contextSpan": {
-        "start": 18,
-        "length": 12
-      }
-    },
-    "references": [
-      {
-        "textSpan": {
-          "start": 18,
-          "length": 3
-        },
-        "fileName": "/tests/cases/fourslash/a.ts",
-        "contextSpan": {
-          "start": 18,
-          "length": 12
-        },
-        "isWriteAccess": false
-      },
-      {
-        "textSpan": {
-          "start": 57,
-          "length": 3
-        },
-        "fileName": "/tests/cases/fourslash/b.ts",
-        "isWriteAccess": false
-      }
-    ]
-  }
-]
\ No newline at end of file