Replace __cplusplus comparisons and dialect __has_feature checks with TEST_STD_VER.

This is a huge cleanup that helps make the libc++ test suite more portable.
Patch from STL@microsoft.com. Thanks STL!

llvm-svn: 272716

1 files changed, 1 insertions, 1 deletions

diff --git a/libcxx/test/std/containers/sequences/deque/deque.modifiers/erase_iter.pass.cpp b/libcxx/test/std/containers/sequences/deque/deque.modifiers/erase_iter.pass.cpp
index a1c42a71dff..116ed9aa4b5 100644
--- a/libcxx/test/std/containers/sequences/deque/deque.modifiers/erase_iter.pass.cpp
+++ b/libcxx/test/std/containers/sequences/deque/deque.modifiers/erase_iter.pass.cpp
@@ -80,7 +80,7 @@ int main()
         for (int j = 0; j < N; ++j)
             testN<std::deque<int> >(rng[i], rng[j]);
     }
-#if __cplusplus >= 201103L
+#if TEST_STD_VER >= 11
     {
     int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2047, 2048, 2049};
     const int N = sizeof(rng)/sizeof(rng[0]);