Sort imports by package names, then by file paths.

pkg/analysis_server/test/services/correction/sort_members_test.dart

Index: pkg/analysis_server/test/services/correction/sort_members_test.dart
diff --git a/pkg/analysis_server/test/services/correction/sort_members_test.dart b/pkg/analysis_server/test/services/correction/sort_members_test.dart
index 96b7d1340897c7202ef655682a51aa0002f801c1..bbf1869111dc08d0cb2edba9cb3f98f74f8b6f24 100644
--- a/pkg/analysis_server/test/services/correction/sort_members_test.dart
+++ b/pkg/analysis_server/test/services/correction/sort_members_test.dart
@@ -385,6 +385,30 @@ main() {
 ''');
   }
 
+  void test_directives_imports_packageAndPath() {
+    _parseTestUnit(r'''
+library lib;
+
+import 'package:product.ui.api.bbb/manager1.dart';
+import 'package:product.ui.api/entity2.dart';
+import 'package:product.ui/entity.dart';
+import 'package:product.ui.api.aaa/manager2.dart';
+import 'package:product.ui.api/entity1.dart';
+import 'package:product2.client/entity.dart';
+''');
+    // validate change
+    _assertSort(r'''
+library lib;
+
+import 'package:product.ui/entity.dart';
+import 'package:product.ui.api/entity1.dart';
+import 'package:product.ui.api/entity2.dart';
+import 'package:product.ui.api.aaa/manager2.dart';
+import 'package:product.ui.api.bbb/manager1.dart';
+import 'package:product2.client/entity.dart';
+''');
+  }
+
   void test_unitMembers_class() {
     _parseTestUnit(r'''
 class C {}