[Bug c++/109222] Confusing error for declaring an enum class with unknown type

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109222

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |enhancement
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2023-03-21
           Keywords|                            |diagnostic

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.

clang does a decent job here:
<source>:1:16: error: unknown type name 'i32'
enum class E : i32 { red, green, blue };
               ^

Though clang error messages for:
```
struct E
{
  enum i32 : int;
};
enum E : i32 { red, green, blue };
```
Seems off ...