Handle deferred access as pre-step in SemanticSendVisitor.

pkg/compiler/lib/src/resolved_visitor.dart

Index: pkg/compiler/lib/src/resolved_visitor.dart
diff --git a/pkg/compiler/lib/src/resolved_visitor.dart b/pkg/compiler/lib/src/resolved_visitor.dart
index b07c36d09eb9d5c3f454f02e79de74a490cebdf0..0efcce0a7199fd9f9d5b4d0ca3ba206ef8fccf39 100644
--- a/pkg/compiler/lib/src/resolved_visitor.dart
+++ b/pkg/compiler/lib/src/resolved_visitor.dart
@@ -389,6 +389,13 @@ class ResolvedSemanticDispatcher<R> extends Object
   }
 
   @override
+  void visitDeferredAccess(

[floitsch, 2015/07/16 15:24:44]

I wonder if we want to rename the "visit" into something else, since it doesn't
follow the other's visit pattern.
I don't have a good name, though.

[Johnni Winther, 2015/07/20 08:53:53]

We'll try 'previsitDeferredAccess'

+      Send node,
+      PrefixElement prefix,
+      ResolvedKindVisitor<R> visitor) {
+  }
+
+  @override
   R errorInvalidAssert(
       Send node,
       NodeList arguments,