Rename mis-named NNBD language tests.

Without "_test" in the name, the test runner ignores them.

Change-Id: I7dc2da51b980b1b5512fc2c2087238129bf1bd78
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/200930
Auto-Submit: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
Commit-Queue: Bob Nystrom <rnystrom@google.com>
diff --git a/tests/language/nnbd/static_errors/late_final_without_initializer.dart b/tests/language/nnbd/static_errors/late_final_without_initializer_test.dart
similarity index 99%
rename from tests/language/nnbd/static_errors/late_final_without_initializer.dart
rename to tests/language/nnbd/static_errors/late_final_without_initializer_test.dart
index 9938078..57c0485 100644
--- a/tests/language/nnbd/static_errors/late_final_without_initializer.dart
+++ b/tests/language/nnbd/static_errors/late_final_without_initializer_test.dart
@@ -2,7 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-
 // Test that it is not a compile time error for a `final` variable to not have
 // an initializer if that variable is declared as `late`.
 import 'package:expect/expect.dart';
diff --git a/tests/language/nnbd/static_errors/local_function_inference.dart b/tests/language/nnbd/static_errors/local_function_inference_test.dart
similarity index 77%
rename from tests/language/nnbd/static_errors/local_function_inference.dart
rename to tests/language/nnbd/static_errors/local_function_inference_test.dart
index af81145..94e55fc 100644
--- a/tests/language/nnbd/static_errors/local_function_inference.dart
+++ b/tests/language/nnbd/static_errors/local_function_inference_test.dart
@@ -23,7 +23,9 @@
       return 3;
     }
   }
-  //  ^
-  // [analyzer] undefined
-  // [cfe] undefined
+//^
+// [analyzer] unspecified
+// [cfe] unspecified
+// TODO(45942): This may be the wrong location, but until the linked issue is
+// fixed and implementations report the error, this is as good as any.
 }
diff --git a/tests/language/nnbd/syntax/late_modifier_bug_39658.dart b/tests/language/nnbd/syntax/late_modifier_bug_39658_test.dart
similarity index 100%
rename from tests/language/nnbd/syntax/late_modifier_bug_39658.dart
rename to tests/language/nnbd/syntax/late_modifier_bug_39658_test.dart