Revert "remove use of copied code (#2956)" (#2957)

This reverts commit b1b17c7.

pkgs/dart_services/README.md

@@ -43,6 +43,12 @@ To rebuild the shelf router, run:
 dart run build_runner build --delete-conflicting-outputs
 ```
 
+And to update the shared code from dartpad_shared, run:
+
+```
+dart tool/grind.dart copy-shared-source
+```
+
 ### Modifying supported packages
 
 Package dependencies are pinned using the `pub_dependencies_<CHANNEL>.yaml`

pkgs/dart_services/lib/src/analysis.dart

@@ -7,14 +7,14 @@ import 'dart:io';
 
 import 'package:analysis_server_lib/analysis_server_lib.dart';
 import 'package:analyzer/dart/ast/ast.dart';
-import 'package:dartpad_shared/model.dart' as api;
 import 'package:logging/logging.dart';
 import 'package:path/path.dart' as path;
 
 import 'common.dart';
 import 'project_templates.dart';
 import 'pub.dart';
 import 'sdk.dart';
+import 'shared/model.dart' as api;
 import 'utils.dart' as utils;
 import 'utils.dart';
 

pkgs/dart_services/lib/src/common_server.dart

@@ -6,7 +6,6 @@ import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 
-import 'package:dartpad_shared/model.dart' as api;
 import 'package:logging/logging.dart';
 import 'package:shelf/shelf.dart';
 import 'package:shelf_router/shelf_router.dart';
@@ -17,6 +16,7 @@ import 'compiling.dart';
 import 'project_templates.dart';
 import 'pub.dart';
 import 'sdk.dart';
+import 'shared/model.dart' as api;
 import 'shelf_cors.dart' as shelf_cors;
 import 'utils.dart';