[PATCH] Make tests more flexible

[Michael Elizabeth Chastain]

Hi Elena,

My testbed is happy now, there are no residual problems after your
fixes last night.

There is a new bug with 'advance/until', in the case where the user
'advances' or 'untils' to a function that is not called from the
current frame.  With gcc 3.*, gdb runs all the way to the specified
function, and does not hit the breakpoint on the return location
in the caller.  I'll file a bug report shortly with gory details.
David C can probably see it right now with gcc 3.1.

Michael C