Handle SendSet and NewExpression through NewResolvedVisitor.

pkg/compiler/lib/src/inferrer/simple_types_inferrer.dart

Index: pkg/compiler/lib/src/inferrer/simple_types_inferrer.dart
diff --git a/pkg/compiler/lib/src/inferrer/simple_types_inferrer.dart b/pkg/compiler/lib/src/inferrer/simple_types_inferrer.dart
index 3be47d21d0ee3744713123e4efda2b93f25fceb1..d47b6324aab7fc4970316755b1e7d67532e2cbc2 100644
--- a/pkg/compiler/lib/src/inferrer/simple_types_inferrer.dart
+++ b/pkg/compiler/lib/src/inferrer/simple_types_inferrer.dart
@@ -773,7 +773,8 @@ class SimpleTypeInferrerVisitor<T>
         || (element != null && element.isInstanceMember);
   }
 
-  T visitSendSet(ast.SendSet node) {
+  @override
+  T handleSendSet(ast.SendSet node) {
     Element element = elements[node];
     if (!Elements.isUnresolved(element) && element.impliesType) {
       node.visitChildren(this);