cpsir: triage remainder of html test suite, fix a couple.

tests/html/input_element_test.dart

Index: tests/html/input_element_test.dart
diff --git a/tests/html/input_element_test.dart b/tests/html/input_element_test.dart
index 0a12d0ba642299bc240f3ab506a179473bb722e2..9509e02ca67d66d4ee4b12ecf0bd6daed3b898f1 100644
--- a/tests/html/input_element_test.dart
+++ b/tests/html/input_element_test.dart
@@ -186,9 +186,10 @@ main() {
     });
     test('valueSetNullProxy', () {
       final e = new TextInputElement();
-      var list = new List(5);
-      e.value = list[0];

[Siggi Cherem (dart-lang), 2016/02/06 02:36:27]

we replaced this with null, but SSA didn't, the new code consistently makes this
undefined.

+      e.value = _undefined;
       expect(e.value, '');
     });
   });
 }
+
+var _undefined = (() => new List(5)[0])();