Changed __config to react to all of clang's currently documented has_feature flags, and renamed _LIBCPP_MOVE to _LIBCPP_HAS_NO_RVALUE_REFERENCES to be more consistent with the rest of the libc++'s flags, and with clang's nomenclature.

llvm-svn: 113086
diff --git a/libcxx/test/strings/basic.string/string.cons/move_alloc.pass.cpp b/libcxx/test/strings/basic.string/string.cons/move_alloc.pass.cpp
index 3acb0055..ccfe508 100644
--- a/libcxx/test/strings/basic.string/string.cons/move_alloc.pass.cpp
+++ b/libcxx/test/strings/basic.string/string.cons/move_alloc.pass.cpp
@@ -14,7 +14,7 @@
 #include <string>
 #include <cassert>
 
-#ifdef _LIBCPP_MOVE
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
 
 #include "../test_allocator.h"
 
@@ -31,15 +31,15 @@
     assert(s2.get_allocator() == a);
 }
 
-#endif  // _LIBCPP_MOVE
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
 
 int main()
 {
-#ifdef _LIBCPP_MOVE
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
     typedef test_allocator<char> A;
     typedef std::basic_string<char, std::char_traits<char>, A> S;
     test(S(), A(3));
     test(S("1"), A(5));
     test(S("1234567890123456789012345678901234567890123456789012345678901234567890"), A(7));
-#endif  // _LIBCPP_MOVE
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
 }