Give a more informative error message when the dot or arrow operator is used
on a type.  Currently, it gives a generic "expected unqualified-id" error.
The new error message is "cannot use (dot|arrow) operator on a type".


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173556 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/ParseDecl.cpp b/lib/Parse/ParseDecl.cpp
index cfe5d1b..6acb0b2 100644
--- a/lib/Parse/ParseDecl.cpp
+++ b/lib/Parse/ParseDecl.cpp
@@ -4498,9 +4498,12 @@
     if (D.getContext() == Declarator::MemberContext)
       Diag(Tok, diag::err_expected_member_name_or_semi)
         << D.getDeclSpec().getSourceRange();
-    else if (getLangOpts().CPlusPlus)
-      Diag(Tok, diag::err_expected_unqualified_id) << getLangOpts().CPlusPlus;
-    else
+    else if (getLangOpts().CPlusPlus) {
+      if (Tok.is(tok::period) || Tok.is(tok::arrow))
+        Diag(Tok, diag::err_invalid_operator_on_type) << Tok.is(tok::arrow);
+      else
+        Diag(Tok, diag::err_expected_unqualified_id) << getLangOpts().CPlusPlus;
+    } else
       Diag(Tok, diag::err_expected_ident_lparen);
     D.SetIdentifier(0, Tok.getLocation());
     D.setInvalidType(true);