[RFA] PR 11530: Fix and test case

[Tom Tromey]

>>>>> "Pierre" == Pierre Muller <pierre.muller@ics-cnrs.unistra.fr> writes:

Pierre>  This is a problem reported by Jan Kratochvil
Pierre> http://sourceware.org/bugzilla/show_bug.cgi?id=11530

Thanks for working on this.

Pierre> +struct a
Pierre> +  {
Pierre> +    union
Pierre> +      {
Pierre> +        int i;
Pierre> +      };
Pierre> +  } a;

Since this is a C extension, I think that the test cases should probably
be dependent on using GCC.

Tom