Remove some spurious test fails

[Joel Brobecker]

> > Although it would be good to fix gcc, that's not practical right now, and I 
> > thought it would be better to defensively code the gdb testsuite anyway.  
> 
> Anyone else have an opinion on this?  I think it's reasonable to avoid
> problematic constructs and test for them explicitly

I agree with Nathan too. In fact, I'm starting to reallly like "pure"
testcases were we only test as few as possible different things. I don't
want one side issue polluting the results of a given testcase...

-- 
Joel