[RFA/JVMTI] Implement GetErrorName

[Keith Seitz]

Tom Tromey wrote:

> Keith> +  *name_ptr = (char *) _Jv_Malloc (strlen (name) + 1);
> Keith> +  if (*name_ptr == NULL)
> Keith> +    return JVMTI_ERROR_OUT_OF_MEMORY;
> 
> I think you want _Jv_MallocUnchecked here.
> Hmm, I think we have this problem elsewhere in jvmti.cc.

I'll take a peek at that when I've finished the tests for the event 
handling stuff. It looks like we probably only want to use the unchecked 
variety and return JVMTI_ERROR_OUT_OF_MEMORY when the malloc fails. I 
don't see anyplace where we wouldn't do this. Do you?

> With that change this is ok, thanks.

Committed. Thanks.

Keith