Start cleaning up the HTML tests.

pkg/dev_compiler/test/codegen/lib/html/custom_elements_23127_test.dart

Index: pkg/dev_compiler/test/codegen/lib/html/custom_elements_23127_test.dart
diff --git a/pkg/dev_compiler/test/codegen/lib/html/custom_elements_23127_test.dart b/pkg/dev_compiler/test/codegen/lib/html/custom_elements_23127_test.dart
index 6386690e2e0eb5c5d1aafcc552e590a7ba458c00..7b0f5764e272c36ed14410b3e97cf531064f8cbd 100644
--- a/pkg/dev_compiler/test/codegen/lib/html/custom_elements_23127_test.dart
+++ b/pkg/dev_compiler/test/codegen/lib/html/custom_elements_23127_test.dart
@@ -56,25 +56,25 @@ abstract class B2T<T> extends HtmlElement {
 class C1 extends B1 {
   int z;
   C1.created() : super.created();
-  action() => z = 3;
+  action() { z = 3; }
 }
 
 class C1T extends B1T {
   int z;
   C1T.created() : super.created();
-  action() => z = 3;
+  action() { z = 3; }
 }
 
 class C2 extends B2 {
   int z;
   C2.created() : super.created(20);
-  action() => z = 3;
+  action() { z = 3; }
 }
 
 class C2T extends B2T {
   int z;
   C2T.created() : super.created(20);
-  action() => z = 3;
+  action() { z = 3; }
 }