Avoid timeouts in call-sc.exp

[Michael Chastain]

Paul Gilliam <pgilliam@us.ibm.com> wrote:
> The test "call-sc.exp" will attemt to "finish" from main if the prevous 
> "return foo" failed.  Here is what happens:
>
> 257		gdb_test_multiple "return foo" "${test}" {
>
> If this works, then we are in "main".  If it doesn't work (say, due to a gdb 
> bug) then we are left in the function "fun".

Oh yeah, that is bad news, an opening for desynchronization.

Before I go any further ... Paul, do you have a copyright assignment
with the FSF for gdb?  Or maybe IBM has a blanket assignement?
I'm not familiar with IBM's arrangement with the FSF.

Thanks,

Michael Chastain