Frontend: Rename hasASTSupport to hasASTFileSupport, which is more accurate.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105580 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/ASTMerge.cpp b/lib/Frontend/ASTMerge.cpp
index b0faf0a..8118631 100644
--- a/lib/Frontend/ASTMerge.cpp
+++ b/lib/Frontend/ASTMerge.cpp
@@ -95,8 +95,8 @@
   return AdaptedAction->hasPCHSupport();
 }
 
-bool ASTMergeAction::hasASTSupport() const {
-  return AdaptedAction->hasASTSupport();
+bool ASTMergeAction::hasASTFileSupport() const {
+  return AdaptedAction->hasASTFileSupport();
 }
 
 bool ASTMergeAction::hasCodeCompletionSupport() const {