[PATCH] [libcxx] Mark atomic tests UNSUPPORTED for c++03 and c++98.

Eric Fiselier eric at efcs.ca
Thu Oct 23 21:00:05 PDT 2014

>I'm saying we might want to verify that these do in fact fail. UNSUPPORTED
>causes the test to not be run, XFAIL tests to ensure failure, which is
>possibly what we want here. 
>OTOH, our test configuration isn't set up to do
> conditional _compile time_ failures, so maybe we should just settle for UNSUPPORTED.

Your right. That's probably a good idea. <atomic> is unique in that it actually explicitly errors when it is included but won't work.
`.fail.cpp` tests are expected to fail at compile time. I think we should do is leave these tests as unsupported and add a `cxx03.fail.cpp` test 
that ensures including <atomic> results in a compiler failures. 

Here's my gripe. I like the separation between
1. XFAIL - tests that should be fixed.
2. UNSUPPORTED - tests I don't care about at all.

It makes it a lot easier to watch just the tests I care about. Adding one XFAIL test seems a touch cleaner, and will guarantee the same thing.


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