[libclang] Indexing: only index implicit template instantiations via an opt-in indexing option.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150517 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/IndexingContext.h b/tools/libclang/IndexingContext.h
index 38f7563..66c635d 100644
--- a/tools/libclang/IndexingContext.h
+++ b/tools/libclang/IndexingContext.h
@@ -322,14 +322,18 @@
   void setASTContext(ASTContext &ctx);
   void setPreprocessor(Preprocessor &PP);
 
-  bool suppressRefs() const {
+  bool shouldSuppressRefs() const {
     return IndexOptions & CXIndexOpt_SuppressRedundantRefs;
   }
 
-  bool indexFunctionLocalSymbols() const {
+  bool shouldIndexFunctionLocalSymbols() const {
     return IndexOptions & CXIndexOpt_IndexFunctionLocalSymbols;
   }
 
+  bool shouldIndexImplicitTemplateInsts() const {
+    return IndexOptions & CXIndexOpt_IndexImplicitTemplateInstantiations;
+  }
+
   bool shouldAbort();
 
   bool hasDiagnosticCallback() const { return CB.diagnostic; }