Make `emitModuleKindIsNonNodeESM` internal (#52599)

src/compiler/moduleNameResolver.ts

@@ -3066,6 +3066,7 @@ export function classicNameResolver(moduleName: string, containingFile: string,
 
 // Program errors validate that `noEmit` or `emitDeclarationOnly` is also set,
 // so this function doesn't check them to avoid propagating errors.
+/** @internal */
 export function shouldAllowImportingTsExtension(compilerOptions: CompilerOptions, fromFileName?: string) {
     return !!compilerOptions.allowImportingTsExtensions || fromFileName && isDeclarationFileName(fromFileName);
 }

src/compiler/utilities.ts

@@ -7989,6 +7989,7 @@ export function getEmitModuleKind(compilerOptions: {module?: CompilerOptions["mo
         getEmitScriptTarget(compilerOptions) >= ScriptTarget.ES2015 ? ModuleKind.ES2015 : ModuleKind.CommonJS;
 }
 
+/** @internal */
 export function emitModuleKindIsNonNodeESM(moduleKind: ModuleKind) {
     return moduleKind >= ModuleKind.ES2015 && moduleKind <= ModuleKind.ESNext;
 }

tests/baselines/reference/api/tsserverlibrary.d.ts

@@ -8689,7 +8689,6 @@ declare namespace ts {
         parent: ConstructorDeclaration;
         name: Identifier;
     };
-    function emitModuleKindIsNonNodeESM(moduleKind: ModuleKind): boolean;
     /** @deprecated */
     function createUnparsedSourceFile(text: string): UnparsedSource;
     /** @deprecated */
@@ -9144,7 +9143,6 @@ declare namespace ts {
     function bundlerModuleNameResolver(moduleName: string, containingFile: string, compilerOptions: CompilerOptions, host: ModuleResolutionHost, cache?: ModuleResolutionCache, redirectedReference?: ResolvedProjectReference): ResolvedModuleWithFailedLookupLocations;
     function nodeModuleNameResolver(moduleName: string, containingFile: string, compilerOptions: CompilerOptions, host: ModuleResolutionHost, cache?: ModuleResolutionCache, redirectedReference?: ResolvedProjectReference): ResolvedModuleWithFailedLookupLocations;
     function classicNameResolver(moduleName: string, containingFile: string, compilerOptions: CompilerOptions, host: ModuleResolutionHost, cache?: NonRelativeModuleNameResolutionCache, redirectedReference?: ResolvedProjectReference): ResolvedModuleWithFailedLookupLocations;
-    function shouldAllowImportingTsExtension(compilerOptions: CompilerOptions, fromFileName?: string): boolean | "" | undefined;
     interface TypeReferenceDirectiveResolutionCache extends PerDirectoryResolutionCache<ResolvedTypeReferenceDirectiveWithFailedLookupLocations>, NonRelativeNameResolutionCache<ResolvedTypeReferenceDirectiveWithFailedLookupLocations>, PackageJsonInfoCache {
     }
     interface ModeAwareCache<T> {

tests/baselines/reference/api/typescript.d.ts

@@ -4714,7 +4714,6 @@ declare namespace ts {
         parent: ConstructorDeclaration;
         name: Identifier;
     };
-    function emitModuleKindIsNonNodeESM(moduleKind: ModuleKind): boolean;
     /** @deprecated */
     function createUnparsedSourceFile(text: string): UnparsedSource;
     /** @deprecated */
@@ -5169,7 +5168,6 @@ declare namespace ts {
     function bundlerModuleNameResolver(moduleName: string, containingFile: string, compilerOptions: CompilerOptions, host: ModuleResolutionHost, cache?: ModuleResolutionCache, redirectedReference?: ResolvedProjectReference): ResolvedModuleWithFailedLookupLocations;
     function nodeModuleNameResolver(moduleName: string, containingFile: string, compilerOptions: CompilerOptions, host: ModuleResolutionHost, cache?: ModuleResolutionCache, redirectedReference?: ResolvedProjectReference): ResolvedModuleWithFailedLookupLocations;
     function classicNameResolver(moduleName: string, containingFile: string, compilerOptions: CompilerOptions, host: ModuleResolutionHost, cache?: NonRelativeModuleNameResolutionCache, redirectedReference?: ResolvedProjectReference): ResolvedModuleWithFailedLookupLocations;
-    function shouldAllowImportingTsExtension(compilerOptions: CompilerOptions, fromFileName?: string): boolean | "" | undefined;
     interface TypeReferenceDirectiveResolutionCache extends PerDirectoryResolutionCache<ResolvedTypeReferenceDirectiveWithFailedLookupLocations>, NonRelativeNameResolutionCache<ResolvedTypeReferenceDirectiveWithFailedLookupLocations>, PackageJsonInfoCache {
     }
     interface ModeAwareCache<T> {