Make helpers static.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128339 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaCodeComplete.cpp b/lib/Sema/SemaCodeComplete.cpp
index bab665a..df3722f 100644
--- a/lib/Sema/SemaCodeComplete.cpp
+++ b/lib/Sema/SemaCodeComplete.cpp
@@ -1785,9 +1785,9 @@
 ///
 /// This routine provides a fast path where we provide constant strings for
 /// common type names.
-const char *GetCompletionTypeString(QualType T,
-                                    ASTContext &Context,
-                                    CodeCompletionAllocator &Allocator) {
+static const char *GetCompletionTypeString(QualType T,
+                                           ASTContext &Context,
+                                           CodeCompletionAllocator &Allocator) {
   PrintingPolicy Policy(Context.PrintingPolicy);
   Policy.AnonymousTagLocations = false;