Fix compile test so it normalizes (un)expected error messages

Author: WaffleLapkin

src/tools/compiletest/src/runtest.rs

@@ -1384,7 +1384,9 @@ impl<'test> TestCx<'test> {
         let actual_errors = json::parse_output(&diagnostic_file_name, &proc_res.stderr, proc_res);
         let mut unexpected = Vec::new();
         let mut found = vec![false; expected_errors.len()];
-        for actual_error in &actual_errors {
+        for mut actual_error in actual_errors {
+            actual_error.msg = self.normalize_output(&actual_error.msg, &[]);
+
             let opt_index =
                 expected_errors.iter().enumerate().position(|(index, expected_error)| {
                     !found[index]
@@ -1403,7 +1405,8 @@ impl<'test> TestCx<'test> {
 
                 None => {
                     // If the test is a known bug, don't require that the error is annotated
-                    if self.is_unexpected_compiler_message(actual_error, expect_help, expect_note) {
+                    if self.is_unexpected_compiler_message(&actual_error, expect_help, expect_note)
+                    {
                         self.error(&format!(
                             "{}:{}: unexpected {}: '{}'",
                             file_name,