Add include for 'test_macros.h' to all the tests that were missing them. Thanks to Zoe for the (big, but simple) patch. NFC intended.

llvm-svn: 362252

libcxx/test/std/strings/basic.string/string.modifiers/string_insert/iter_initializer_list.pass.cpp

@@ -16,6 +16,7 @@
 #include <string>
 #include <cassert>
 
+#include "test_macros.h"
 #include "min_allocator.h"
 
 int main(int, char**)

libcxx/test/std/strings/basic.string/string.modifiers/string_insert/iter_iter_iter.pass.cpp

@@ -18,6 +18,7 @@
 #include <string>
 #include <cassert>
 
+#include "test_macros.h"
 #include "test_iterators.h"
 #include "min_allocator.h"