Revert "Split TypedSelector into Selector and TypeMask."

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

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of type_graph_inferrer;
 
 class ClosureTracerVisitor extends TracerVisitor<ApplyableTypeInformation> {
   final Iterable<FunctionElement> tracedElements;
   final List<CallSiteTypeInformation> callsToAnalyze =
       new List<CallSiteTypeInformation>();
@@ skipping 20 matching lines @@
       print("Closure $tracedType might be passed to apply: $reason");
     }
   }
 
   void registerCallForLaterAnalysis(CallSiteTypeInformation info) {
     callsToAnalyze.add(info);
   }
 
   void analyzeCall(CallSiteTypeInformation info) {
     Selector selector = info.selector;
-    TypeMask mask = info.mask;
     tracedElements.forEach((FunctionElement functionElement) {
       if (!selector.signatureApplies(functionElement)) return;
       inferrer.updateParameterAssignments(info, functionElement, info.arguments,
-          selector, mask, remove: false, addToQueue: false);
+          selector, remove: false, addToQueue: false);
     });
   }
 
   visitClosureCallSiteTypeInformation(ClosureCallSiteTypeInformation info) {
     super.visitClosureCallSiteTypeInformation(info);
     if (info.closure == currentUser) {
       registerCallForLaterAnalysis(info);
     } else {
       bailout('Passed to a closure');
     }
@@ skipping 58 matching lines @@
 
   visitStaticCallSiteTypeInformation(StaticCallSiteTypeInformation info) {
     super.visitStaticCallSiteTypeInformation(info);
     if (info.calledElement == tracedElements.first
         && info.selector != null
         && info.selector.isGetter) {
       addNewEscapeInformation(info);
     }
   }
 }