Revert "unittest step 3 and 4: remove TestFramework.dart, make test.dart use"

tools/testing/dart/test_suite.dart

Index: tools/testing/dart/test_suite.dart
diff --git a/tools/testing/dart/test_suite.dart b/tools/testing/dart/test_suite.dart
index 6f874a691c70f93530370d8c4bad731e1f7de837..c53921fa52af46316e3595e446007a1e21892f34 100644
--- a/tools/testing/dart/test_suite.dart
+++ b/tools/testing/dart/test_suite.dart
@@ -539,6 +539,7 @@ class StandardTestSuite implements TestSuite {
 
       String dartWrapperFilename = '${tempDir.path}/test.dart';
       String compiledDartWrapperFilename = '${tempDir.path}/test.js';
+      String domLibraryImport = 'dart:dom';
 
       String htmlPath = '${tempDir.path}/test.html';
       if (!isWebTest) {
@@ -557,8 +558,10 @@ class StandardTestSuite implements TestSuite {
 
         File file = new File(dartWrapperFilename);
         RandomAccessFile dartWrapper = file.openSync(FileMode.WRITE);
-        dartWrapper.writeStringSync(
-            DartTestWrapper(dartDir, dartLibraryFilename));
+        dartWrapper.writeStringSync(DartTestWrapper(
+            domLibraryImport,
+            '$dartDir/tests/isolate/src/TestFramework.dart',
+            dartLibraryFilename));
         dartWrapper.closeSync();
       } else {
         dartWrapperFilename = testPath;