gdb 5.3 versus gdb HEAD%200302015

[Michael Elizabeth Chastain]

> Nope, there was no PR, just a patch when I noticed it.  Besides, didn't
> we want to only use PRs in the GDB database?  This would be an
> external/closed.

Works for me.  Heck, I think I argued for that position anyways!

Unfortunately gdb_mi_test does not have a multi-armed form so
I have to use a blunt setup_kfail.

I'll go file an external/closed PR for this and then point the
test case at it.

Michael C