Drive-by fix of incorrect diagnostic, and a test case for said diagnostic. The double error is unfortunate, but I really don't see an alternative whose effort is worth it.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150317 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/ParseDecl.cpp b/lib/Parse/ParseDecl.cpp
index aa587e7..0c8a647 100644
--- a/lib/Parse/ParseDecl.cpp
+++ b/lib/Parse/ParseDecl.cpp
@@ -1282,8 +1282,8 @@
         Diag(ConsumeToken(), diag::err_deleted_non_function);
     } else if (Tok.is(tok::kw_default)) {
       if (D.isFunctionDeclarator())
-        Diag(Tok, diag::err_default_delete_in_multiple_declaration)
-          << 1 /* delete */;
+        Diag(ConsumeToken(), diag::err_default_delete_in_multiple_declaration)
+          << 0 /* default */;
       else
         Diag(ConsumeToken(), diag::err_default_special_members);
     } else {