move a few more symbols to .rodata/.data.rel.ro

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92012 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/DeclarationName.cpp b/lib/AST/DeclarationName.cpp
index 0ce03c2..60c40e2 100644
--- a/lib/AST/DeclarationName.cpp
+++ b/lib/AST/DeclarationName.cpp
@@ -210,7 +210,7 @@
   }
 
   case CXXOperatorName: {
-    static const char *OperatorNames[NUM_OVERLOADED_OPERATORS] = {
+    static const char* const OperatorNames[NUM_OVERLOADED_OPERATORS] = {
       0,
 #define OVERLOADED_OPERATOR(Name,Spelling,Token,Unary,Binary,MemberOnly) \
       Spelling,