Fix unused variable warning in SemaTemplate. NFC

llvm-svn: 321346
diff --git a/clang/lib/Sema/SemaTemplate.cpp b/clang/lib/Sema/SemaTemplate.cpp
index 4ce4a90..8e378a8 100644
--- a/clang/lib/Sema/SemaTemplate.cpp
+++ b/clang/lib/Sema/SemaTemplate.cpp
@@ -950,7 +950,7 @@
     if (DS.getStorageClassSpec() != DeclSpec::SCS_unspecified)
       EmitDiag(DS.getStorageClassSpecLoc());
     
-    if (DeclSpec::TSCS TSCS = DS.getThreadStorageClassSpec())
+    if (DS.getThreadStorageClassSpec() != TSCS_unspecified)
       EmitDiag(DS.getThreadStorageClassSpecLoc());
     
     // [dcl.inline]p1: