Add 178663 back.

http://lab.llvm.org:8011/builders/clang-x86_64-darwin10-gdb went back green
before it processed the reverted 178663, so it could not have been the culprit.

Revert "Revert 178663."

This reverts commit 4f8a3eb2ce5d4ba422483439e20c8cbb4d953a41.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178682 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaTemplate.cpp b/lib/Sema/SemaTemplate.cpp
index adf25ce..9906261 100644
--- a/lib/Sema/SemaTemplate.cpp
+++ b/lib/Sema/SemaTemplate.cpp
@@ -6057,8 +6057,7 @@
                                         TemplArgs, /*InsertPos=*/0,
                                     SpecInfo->getTemplateSpecializationKind(),
                                         ExplicitTemplateArgs);
-  FD->setStorageClass(Specialization->getStorageClass());
-  
+
   // The "previous declaration" for this function template specialization is
   // the prior function template specialization.
   Previous.clear();