Some renames to use the 'visitor' nomenclature, no functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165083 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/ASTUnit.cpp b/lib/Frontend/ASTUnit.cpp
index eaad06a..79559a3 100644
--- a/lib/Frontend/ASTUnit.cpp
+++ b/lib/Frontend/ASTUnit.cpp
@@ -2792,7 +2792,7 @@
                         PreprocessingRecord::iterator());
 }
 
-bool ASTUnit::applyOnLocalTopLevelDecls(void *context, DeclReceiverFn Fn) {
+bool ASTUnit::visitLocalTopLevelDecls(void *context, DeclVisitorFn Fn) {
   if (isMainFileAST()) {
     serialization::ModuleFile &
       Mod = Reader->getModuleManager().getPrimaryModule();