[path] fix tests to compile/run with wasm (#851)

Author: kevmoo

pkgs/path/CHANGELOG.md

@@ -1,3 +1,5 @@
+## 1.9.2-wip
+
 ## 1.9.1
 
 - Require Dart 3.4

pkgs/path/pubspec.yaml

@@ -1,5 +1,5 @@
 name: path
-version: 1.9.1
+version: 1.9.2-wip
 description: A string-based path manipulation library.  
 repository: https://github.com/dart-lang/core/tree/main/pkgs/path
 issue_tracker: https://github.com/dart-lang/core/issues?q=is%3Aissue+is%3Aopen+label%3Apackage%3Apath
@@ -13,3 +13,4 @@ environment:
 dev_dependencies:
   dart_flutter_team_lints: ^3.0.0
   test: ^1.16.6
+  web: ^1.0.0

pkgs/path/test/browser_test.dart

@@ -5,10 +5,9 @@
 @TestOn('browser')
 library;
 
-import 'dart:html';
-
 import 'package:path/path.dart' as path;
 import 'package:test/test.dart';
+import 'package:web/web.dart';
 
 void main() {
   group('new Context()', () {