Update LKG

Author: mhegazy

lib/tsc.js

@@ -1382,9 +1382,12 @@ declare namespace ts {
     }
     interface ResolvedModule {
         resolvedFileName: string;
+        isExternalLibraryImport?: boolean;
+    }
+    interface ResolvedModuleWithFailedLookupLocations {
+        resolvedModule: ResolvedModule;
         failedLookupLocations: string[];
     }
-    type ModuleNameResolver = (moduleName: string, containingFile: string, options: CompilerOptions, host: ModuleResolutionHost) => ResolvedModule;
     interface CompilerHost extends ModuleResolutionHost {
         getSourceFile(fileName: string, languageVersion: ScriptTarget, onError?: (message: string) => void): SourceFile;
         getCancellationToken?(): CancellationToken;
@@ -1394,7 +1397,7 @@ declare namespace ts {
         getCanonicalFileName(fileName: string): string;
         useCaseSensitiveFileNames(): boolean;
         getNewLine(): string;
-        resolveModuleNames?(moduleNames: string[], containingFile: string): string[];
+        resolveModuleNames?(moduleNames: string[], containingFile: string): ResolvedModule[];
     }
     interface TextSpan {
         start: number;
@@ -1515,10 +1518,9 @@ declare namespace ts {
     const version: string;
     function findConfigFile(searchPath: string): string;
     function resolveTripleslashReference(moduleName: string, containingFile: string): string;
-    function resolveModuleName(moduleName: string, containingFile: string, compilerOptions: CompilerOptions, host: ModuleResolutionHost): ResolvedModule;
-    function nodeModuleNameResolver(moduleName: string, containingFile: string, host: ModuleResolutionHost): ResolvedModule;
-    function baseUrlModuleNameResolver(moduleName: string, containingFile: string, baseUrl: string, host: ModuleResolutionHost): ResolvedModule;
-    function classicNameResolver(moduleName: string, containingFile: string, compilerOptions: CompilerOptions, host: ModuleResolutionHost): ResolvedModule;
+    function resolveModuleName(moduleName: string, containingFile: string, compilerOptions: CompilerOptions, host: ModuleResolutionHost): ResolvedModuleWithFailedLookupLocations;
+    function nodeModuleNameResolver(moduleName: string, containingFile: string, host: ModuleResolutionHost): ResolvedModuleWithFailedLookupLocations;
+    function classicNameResolver(moduleName: string, containingFile: string, compilerOptions: CompilerOptions, host: ModuleResolutionHost): ResolvedModuleWithFailedLookupLocations;
     function createCompilerHost(options: CompilerOptions, setParentNodes?: boolean): CompilerHost;
     function getPreEmitDiagnostics(program: Program, sourceFile?: SourceFile, cancellationToken?: CancellationToken): Diagnostic[];
     function flattenDiagnosticMessageText(messageText: string | DiagnosticMessageChain, newLine: string): string;
@@ -1649,7 +1651,7 @@ declare namespace ts {
         trace?(s: string): void;
         error?(s: string): void;
         useCaseSensitiveFileNames?(): boolean;
-        resolveModuleNames?(moduleNames: string[], containingFile: string): string[];
+        resolveModuleNames?(moduleNames: string[], containingFile: string): ResolvedModule[];
     }
     interface LanguageService {
         cleanupSemanticCache(): void;