Don't run HTML tests with the new task model.

pkg/analyzer/test/generated/all_the_rest_test.dart

Index: pkg/analyzer/test/generated/all_the_rest_test.dart
diff --git a/pkg/analyzer/test/generated/all_the_rest_test.dart b/pkg/analyzer/test/generated/all_the_rest_test.dart
index 248ea3d3598e553d2850fb50c540f9f6366cf07d..804aae22522de56e9c70f3500a18fb99d5e80c0b 100644
--- a/pkg/analyzer/test/generated/all_the_rest_test.dart
+++ b/pkg/analyzer/test/generated/all_the_rest_test.dart
@@ -66,10 +66,12 @@ main() {
   runReflectiveTests(ExitDetectorTest2);
   runReflectiveTests(FileBasedSourceTest);
   runReflectiveTests(FileUriResolverTest);
-  runReflectiveTests(HtmlParserTest);
-  runReflectiveTests(HtmlTagInfoBuilderTest);
-  runReflectiveTests(HtmlUnitBuilderTest);
-  runReflectiveTests(HtmlWarningCodeTest);
+  if (!AnalysisEngine.instance.useTaskModel) {
+    runReflectiveTests(HtmlParserTest);
+    runReflectiveTests(HtmlTagInfoBuilderTest);
+    runReflectiveTests(HtmlUnitBuilderTest);
+    runReflectiveTests(HtmlWarningCodeTest);
+  }
   runReflectiveTests(ReferenceFinderTest);
   runReflectiveTests(SDKLibrariesReaderTest);
   runReflectiveTests(SourceFactoryTest);