Move pub into sdk/lib/_internal.

sdk/lib/_internal/pub/test/validator/name_test.dart

Index: sdk/lib/_internal/pub/test/validator/name_test.dart
diff --git a/utils/tests/pub/validator/name_test.dart b/sdk/lib/_internal/pub/test/validator/name_test.dart
similarity index 95%
rename from utils/tests/pub/validator/name_test.dart
rename to sdk/lib/_internal/pub/test/validator/name_test.dart
index 9f0085b7e8189a871e6e567220a838166a333398..258934a746aff90ebc686b5771ea9182fa88c372 100644
--- a/utils/tests/pub/validator/name_test.dart
+++ b/sdk/lib/_internal/pub/test/validator/name_test.dart
@@ -5,10 +5,10 @@
 import 'package:pathos/path.dart' as path;
 import 'package:scheduled_test/scheduled_test.dart';
 
-import '../../../pub/entrypoint.dart';
-import '../../../pub/io.dart';
-import '../../../pub/validator.dart';
-import '../../../pub/validator/name.dart';
+import 'package:pub/src/entrypoint.dart';
+import 'package:pub/src/io.dart';
+import 'package:pub/src/validator.dart';
+import 'package:pub/src/validator/name.dart';
 import '../descriptor.dart' as d;
 import '../test_pub.dart';
 import 'utils.dart';