Add more thorough/correct checking for invalid __thread specifiers.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69542 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/DeclSpec.cpp b/lib/Parse/DeclSpec.cpp
index 40675de..bcf14d9 100644
--- a/lib/Parse/DeclSpec.cpp
+++ b/lib/Parse/DeclSpec.cpp
@@ -94,6 +94,7 @@
   case DeclSpec::SCS_static:      return "static";
   case DeclSpec::SCS_auto:        return "auto";
   case DeclSpec::SCS_register:    return "register";
+  case DeclSpec::SCS_private_extern: return "__private_extern__";
   case DeclSpec::SCS_mutable:     return "mutable";
   }
 }
@@ -345,18 +346,6 @@
       TypeSpecComplex = TSC_unspecified;
     }
   }
-  
-  // Verify __thread.
-  if (SCS_thread_specified) {
-    if (StorageClassSpec == SCS_unspecified) {
-      StorageClassSpec = SCS_extern; // '__thread int' -> 'extern __thread int'
-    } else if (StorageClassSpec != SCS_extern &&
-               StorageClassSpec != SCS_static) {
-      Diag(D, getStorageClassSpecLoc(), SrcMgr, diag::err_invalid_thread_spec)
-        << getSpecifierName((SCS)StorageClassSpec);
-      SCS_thread_specified = false;
-    }
-  }
 
   // Okay, now we can infer the real type.