Update status file to use mac instead of macos.

Update status file to use mac instead of macos.

Emily: why do we have these skip exceptions anyway, imho they don't make any sense at all (who has ie on linux or mac?). If there is no deeper meaning we should delete them.
Committed: https://code.google.com/p/dart/source/detail?r=11287

[ahe, 2012-08-22 11:17:22]

LGTM!

What if test.dart knew that ie/macos or ie/linux doesn't make sense. Just like
when you say test.py -cdart2js -rvm.

[ricow1, 2012-08-22 11:21:52]

On 2012/08/22 11:17:22, ahe wrote:
> LGTM!
> 
> What if test.dart knew that ie/macos or ie/linux doesn't make sense. Just like
> when you say test.py -cdart2js -rvm.

That is a good point, I also see a bunch of other status sections that I really
don't see making sense as well. Actually adding this kind of check to test.dart
does not seem that hard.

[Emily Fortuna, 2012-08-22 18:06:57]

lgtm
The skip sections are just to prevent someone from running tests with that
combo, which you're right: it doesn't make much sense. @Peter--test.dart already
does some "validation" of combinations that "make sense" (ie, you can't have
compiler=none and runtime=safari), so we could certainly add the (no ie on mac
or linux). The one where it's actually still useful to have I think is there is
a Safari for Windows, so we should still explicitly have that skip.