Break up another large file

pkg/analysis_server/lib/src/edit/edit_domain.dart

Index: pkg/analysis_server/lib/src/edit/edit_domain.dart
diff --git a/pkg/analysis_server/lib/src/edit/edit_domain.dart b/pkg/analysis_server/lib/src/edit/edit_domain.dart
index 83481a959e812721104a303fe1e2206fe8a668dc..44e9ea7a206314a053e8de5450333cec9bc9baa1 100644
--- a/pkg/analysis_server/lib/src/edit/edit_domain.dart
+++ b/pkg/analysis_server/lib/src/edit/edit_domain.dart
@@ -21,9 +21,10 @@ import 'package:analysis_server/src/services/refactoring/refactoring.dart';
 import 'package:analysis_server/src/services/search/search_engine.dart';
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/element/element.dart';
+import 'package:analyzer/error/error.dart' as engine;
 import 'package:analyzer/src/dart/scanner/scanner.dart' as engine;
+import 'package:analyzer/src/error/codes.dart' as engine;
 import 'package:analyzer/src/generated/engine.dart' as engine;
-import 'package:analyzer/src/generated/error.dart' as engine;
 import 'package:analyzer/src/generated/parser.dart' as engine;
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/task/dart.dart';