Small fix for bug 18635.
(clang crashed in CodeGen in llvm::Module::getNamedValue on
 thread_local std::unique_ptr<int>).
Differential Revision: http://reviews.llvm.org/D5353


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@218503 91177308-0d34-0410-b5e6-96231b3b80d8