TypeScript: Forbid invalid tuple label (#14256)

src/language-js/parse/babel.js

@@ -189,7 +189,6 @@ const allowedMessageCodes = new Set([
   "UnsupportedParameterPropertyKind",
 
   "MixedLabeledAndUnlabeledElements",
-  "InvalidTupleMemberLabel",
 
   "DuplicateAccessibilityModifier",
   "IndexSignatureHasDeclare",

tests/format/misc/errors/typescript/tuple/__snapshots__/jsfmt.spec.js.snap

@@ -0,0 +1,25 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`snippet: #0 [babel-ts] format 1`] = `
+"Tuple members must be labeled with a simple identifier. (1:11)
+> 1 | type T = [x.y: A];
+    |           ^"
+`;
+
+exports[`snippet: #0 [typescript] format 1`] = `
+"',' expected. (1:14)
+> 1 | type T = [x.y: A];
+    |              ^"
+`;
+
+exports[`snippet: #1 [babel-ts] format 1`] = `
+"Tuple members must be labeled with a simple identifier. (1:11)
+> 1 | type T = [x<y>: A];
+    |           ^"
+`;
+
+exports[`snippet: #1 [typescript] format 1`] = `
+"',' expected. (1:15)
+> 1 | type T = [x<y>: A];
+    |               ^"
+`;

tests/format/misc/errors/typescript/tuple/jsfmt.spec.js

@@ -0,0 +1,12 @@
+run_spec(
+  {
+    importMeta: import.meta,
+    snippets: [
+      // Invalid label 1
+      "type T = [x.y: A];",
+      // Invalid label 2
+      "type T = [x<y>: A];",
+    ],
+  },
+  ["babel-ts", "typescript"]
+);

tests/format/misc/typescript-babel-only/__snapshots__/jsfmt.spec.js.snap

@@ -183,25 +183,3 @@ type Foo =
 
 ================================================================================
 `;
-
-exports[`tuple-labeled-ts.ts format 1`] = `
-====================================options=====================================
-parsers: ["babel-ts"]
-printWidth: 80
-                                                                                | printWidth
-=====================================input======================================
-// Invalid label 1
-type T = [x.y: A];
-
-// Invalid label 2
-type T = [x<y>: A];
-
-=====================================output=====================================
-// Invalid label 1
-type T = [x.y: A];
-
-// Invalid label 2
-type T = [x<y>: A];
-
-================================================================================
-`;

tests/format/misc/typescript-babel-only/tuple-labeled-ts.ts

@@ -1,5 +0,0 @@
-// Invalid label 1
-type T = [x.y: A];
-
-// Invalid label 2
-type T = [x<y>: A];