Add parsing and AST support for GNU "typeof".
Many small changes to lot's of files.
Still some FIXME's, however the basic support is in place.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@40631 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Parse/DeclSpec.cpp b/Parse/DeclSpec.cpp
index d3ddf47..31338d8 100644
--- a/Parse/DeclSpec.cpp
+++ b/Parse/DeclSpec.cpp
@@ -98,6 +98,8 @@
   case DeclSpec::TST_union:       return "union";
   case DeclSpec::TST_struct:      return "struct";
   case DeclSpec::TST_typedef:     return "typedef";
+  case DeclSpec::TST_typeofType:
+  case DeclSpec::TST_typeofExpr:  return "typeof";
   }
 }