Remove nondeterminism introduced in r178950.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178952 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenModule.h b/lib/CodeGen/CodeGenModule.h
index ccac437..6bc4456 100644
--- a/lib/CodeGen/CodeGenModule.h
+++ b/lib/CodeGen/CodeGenModule.h
@@ -310,6 +310,7 @@
   typedef llvm::DenseMap<IdentifierInfo *,
                          llvm::GlobalValue *> StaticExternCMap;
   StaticExternCMap StaticExternCValues;
+  std::vector<IdentifierInfo*> StaticExternCIdents;
 
   /// CXXGlobalInits - Global variables with initializers that need to run
   /// before main.