#include <test_macros.h> in all the regex tests, and remove all mentions of __cpluplus (use TEST_STD_VERS and/or XFAIL instead). No functional change

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@267567 91177308-0d34-0410-b5e6-96231b3b80d8

test/std/re/re.alg/re.alg.search/basic.fail.cpp

@@ -18,12 +18,11 @@
 //                     regex_constants::match_flag_type = 
 //                       regex_constants::match_default) = delete;
 
-#if __cplusplus <= 201402L
-#error
-#else
+// XFAIL: C++98, c++03, c++11
 
 #include <regex>
 #include <cassert>
+#include "test_macros.h"
 
 int main()
 {
@@ -33,4 +32,3 @@ int main()
         std::regex_search(std::string("abcde"), m, re);
     }
 }
-#endif