Fix undefined method errors adding no-op stubs for methods needed by dart2js but irrelevant in ddc.…

tool/input_sdk/private/native_helper.dart

Index: tool/input_sdk/private/native_helper.dart
diff --git a/tool/input_sdk/private/native_helper.dart b/tool/input_sdk/private/native_helper.dart
index 2edaa4d4a4431f1e0c73490879cf2dbfabab7d17..63e29a1ced292ec75d30d5eb54c2235fafe3d8a1 100644
--- a/tool/input_sdk/private/native_helper.dart
+++ b/tool/input_sdk/private/native_helper.dart
@@ -16,3 +16,10 @@ void defineProperty(var obj, String property, var value) {
       property,
       value);
 }
+
+// Obsolete in dart dev compiler. Added only so that the same version of
+// dart:html can be used in dart2js an dev compiler.
+setNativeSubclassDispatchRecord(proto, interceptor) { }
+convertDartClosureToJS(closure, int arity) {}

[vsm, 2016/04/20 23:11:00]

This should return closure, right?

[Jacob, 2016/04/21 01:02:39]

Done. Also made this a generic method.

+findDispatchTagForInterceptorClass(interceptorClassConstructor) {}
+makeLeafDispatchRecord(interceptor) {}