gdbserver/ada testing broken

[Joel Brobecker]

> Is there a reason have a double level of directories named after the test?
> 
> outputs
> └── gdb.ada
>     └── formatted_ref
>         └── formatted_ref

Initially, I thought this was an obvious mistake. But after further
thought, I think it now expected and done for all testcases, including
the testscases where the main has a name that's different from
the name of the testcase.

I'm looking at Pedro's email, now, as I think the issue is indeed
confined to when testing remotely.

-- 
Joel