Invoke noSuchMethod instead of immediately throwing NoSuchMethodError when

runtime/lib/invocation_mirror_patch.dart

Index: runtime/lib/invocation_mirror_patch.dart
===================================================================
--- runtime/lib/invocation_mirror_patch.dart	(revision 16218)
+++ runtime/lib/invocation_mirror_patch.dart	(working copy)
@@ -64,28 +64,28 @@
   }
 
   bool get isMethod {
-    if (_memberName == null) {
+    if (_type == null) {
       _setMemberNameAndType();
     }
     return _type == _METHOD;
   }
 
   bool get isAccessor {
-    if (_memberName == null) {
+    if (_type == null) {
       _setMemberNameAndType();
     }
     return _type != _METHOD;
   }
 
   bool get isGetter {
-    if (_memberName == null) {
+    if (_type == null) {
       _setMemberNameAndType();
     }
     return _type == _GETTER;
   }
 
   bool get isSetter {
-    if (_memberName == null) {
+    if (_type == null) {
       _setMemberNameAndType();
     }
     return _type == _SETTER;