From 8d13314056b084cf9fb97df3ffa168059ed2af5f Mon Sep 17 00:00:00 2001
From: Klaus Meinhardt <klaus.meinhardt1@gmail.com>
Date: Wed, 23 Aug 2017 23:33:53 +0200
Subject: [PATCH] Expose isSourceFileFromExternalLibrary (#16112)

---
 src/compiler/types.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/compiler/types.ts b/src/compiler/types.ts
index 26bf5e1a91f..8fe602ea6f9 100644
--- a/src/compiler/types.ts
+++ b/src/compiler/types.ts
@@ -2431,7 +2431,7 @@ namespace ts {
         getDeclarationDiagnostics(sourceFile?: SourceFile, cancellationToken?: CancellationToken): Diagnostic[];
 
         /**
-         * Gets a type checker that can be used to semantically analyze source fils in the program.
+         * Gets a type checker that can be used to semantically analyze source files in the program.
          */
         getTypeChecker(): TypeChecker;
 
@@ -2451,7 +2451,7 @@ namespace ts {
 
         /* @internal */ getFileProcessingDiagnostics(): DiagnosticCollection;
         /* @internal */ getResolvedTypeReferenceDirectives(): Map<ResolvedTypeReferenceDirective>;
-        /* @internal */ isSourceFileFromExternalLibrary(file: SourceFile): boolean;
+        isSourceFileFromExternalLibrary(file: SourceFile): boolean;
         // For testing purposes only.
         /* @internal */ structureIsReused?: StructureIsReused;