linter: fix some test file suffixes

Change-Id: I2b4a7c49a4af7a9c9c8362e278cb370e59c3b179
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/365665
Commit-Queue: Phil Quitslund <pquitslund@google.com>
Reviewed-by: Phil Quitslund <pquitslund@google.com>
Auto-Submit: Samuel Rawlins <srawlins@google.com>
diff --git a/pkg/linter/test/all.dart b/pkg/linter/test/all.dart
index 88a3efd..6bed314 100644
--- a/pkg/linter/test/all.dart
+++ b/pkg/linter/test/all.dart
@@ -17,8 +17,8 @@
 import 'rules/all.dart' as reflective_rule_tests;
 import 'unmocked_sdk_rule_test.dart' as unmocked_sdk_rule_test;
 import 'utils_test.dart' as utils_test;
-import 'validate_incompatible_rules.dart' as validate_incompatible_rules;
-import 'validate_no_rule_description_references.dart'
+import 'validate_incompatible_rules_test.dart' as validate_incompatible_rules;
+import 'validate_no_rule_description_references_test.dart'
     as validate_no_rule_description_references;
 import 'validate_rule_description_format_test.dart'
     as validate_rule_description_format;
diff --git a/pkg/linter/test/validate_incompatible_rules.dart b/pkg/linter/test/validate_incompatible_rules_test.dart
similarity index 100%
rename from pkg/linter/test/validate_incompatible_rules.dart
rename to pkg/linter/test/validate_incompatible_rules_test.dart
diff --git a/pkg/linter/test/validate_no_rule_description_references.dart b/pkg/linter/test/validate_no_rule_description_references_test.dart
similarity index 100%
rename from pkg/linter/test/validate_no_rule_description_references.dart
rename to pkg/linter/test/validate_no_rule_description_references_test.dart