[libclang] When indexing, invoke the importedASTFile for PCH files as well.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165161 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/IndexingContext.h b/tools/libclang/IndexingContext.h
index e556d4d..e92894a 100644
--- a/tools/libclang/IndexingContext.h
+++ b/tools/libclang/IndexingContext.h
@@ -383,6 +383,7 @@
                       bool isImport, bool isAngled);
 
   void importedModule(const ImportDecl *ImportD);
+  void importedPCH(const FileEntry *File);
 
   void startedTranslationUnit();