Support the latest version of test.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1921533010 .
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6f2bfdf..cb7ec70 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# 0.2.1+2
+
+* Compatibility with the latest `test`.
+
 # 0.2.1+1
 
 * Require `test` version `0.12.5`.
diff --git a/lib/metatest.dart b/lib/metatest.dart
index 0fb33d9..a582cff 100644
--- a/lib/metatest.dart
+++ b/lib/metatest.dart
@@ -17,7 +17,7 @@
 import 'package:test/src/backend/state.dart';
 import 'package:test/src/runner/engine.dart';
 import 'package:test/src/runner/runner_suite.dart';
-import 'package:test/src/runner/vm/environment.dart';
+import 'package:test/src/runner/plugin/environment.dart';
 import 'package:test/test.dart';
 
 /// Declares a test with the given [description] and [body].
@@ -72,7 +72,7 @@
     runZoned(body, zoneValues: {#test.declarer: declarer});
 
     var engine = new Engine.withSuites([
-      new RunnerSuite(new VMEnvironment(), declarer.build())
+      new RunnerSuite(new PluginEnvironment(), declarer.build())
     ]);
     for (var test in engine.liveTests) {
       test.onPrint.listen(print);
diff --git a/pubspec.yaml b/pubspec.yaml
index b1b2914..78f13eb 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -6,4 +6,4 @@
 environment:
   sdk: '>=1.8.0 <2.0.0'
 dependencies:
-  test: '^0.12.5'
+  test: '^0.12.11'