Eric Fiselier 960b5867c5 Add "REQUIRES-ANY" feature test
Summary:
This patch adds a "REQUIRES-ANY" feature test that is disjunctive. This marks a test as `UNSUPPORTED` if none of the specified features are available.

Libc++ has the need to write feature test such as `// REQUIRES-ANY: c++98, c++03`  when testing of behavior that is specific to older dialects but has since changed.


Reviewers: rnk, ddunbar

Subscribers: ddunbar, probinson, llvm-commits, cfe-commits

Differential Revision: http://reviews.llvm.org/D20757

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271468 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-02 01:59:57 +00:00
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2016-06-02 01:59:57 +00:00
2016-05-05 14:35:40 +00:00