Improve error message when referencing a non-tag type with a tag

Other compilers accept invalid code here that we reject, and we need a
better error message to try to convince users that the code is really
incorrect. Consider:
  class Foo {
    typedef MyIterHelper<Foo> iterator;
    friend class iterator;
  };

Previously our wording was "elaborated type refers to a typedef".
"elaborated type" isn't widely known terminology, so the new diagnostic
says "typedef 'iterator' cannot be referenced with class specifier".

Reviewers: rsmith

Differential Revision: https://reviews.llvm.org/D25216

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@289259 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2 insertions, 2 deletions

diff --git a/test/CXX/basic/basic.lookup/basic.lookup.elab/p2.cpp b/test/CXX/basic/basic.lookup/basic.lookup.elab/p2.cpp
index 004d1e491f..ca17ba50ac 100644
--- a/test/CXX/basic/basic.lookup/basic.lookup.elab/p2.cpp
+++ b/test/CXX/basic/basic.lookup/basic.lookup.elab/p2.cpp
@@ -9,7 +9,7 @@ namespace test0 {
     typedef int A; // expected-note {{declared here}}
 
     int test() {
-      struct A a; // expected-error {{elaborated type refers to a typedef}}
+      struct A a; // expected-error {{typedef 'A' cannot be referenced with a struct specifier}}
       return a.foo;
     }
   }
@@ -18,7 +18,7 @@ namespace test0 {
     template <class> class A; // expected-note {{declared here}}
 
     int test() {
-      struct A a; // expected-error {{elaborated type refers to a template}}
+      struct A a; // expected-error {{template 'A' cannot be referenced with a struct specifier}}
       return a.foo;
     }
   }