[Support] Make the SystemZ bot happy by using make_error_code.

This should fix the last issue on the SystemZ bot related to the broken symlink
test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297767 91177308-0d34-0410-b5e6-96231b3b80d8

Author: ributzka

unittests/Support/Path.cpp

@@ -825,7 +825,8 @@ TEST_F(FileSystemTest, BrokenSymlinkDirectoryIteration) {
     ASSERT_NO_ERROR(ec);
 
     fs::file_status status;
-    if (i->status(status) == std::errc::no_such_file_or_directory) {
+    if (i->status(status) ==
+        std::make_error_code(std::errc::no_such_file_or_directory)) {
       i.no_push();
       continue;
     }