Give up tracing of a function if one of its closurizations escapes tracing.

sdk/lib/_internal/compiler/implementation/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>();
 
   ClosureTracerVisitor(this.tracedElements, tracedType, inferrer)
       : super(tracedType, inferrer);
 
   void run() {
-    for (FunctionElement e in tracedElements) {
-      e.functionSignature.forEachParameter((Element parameter) {
-        ElementTypeInformation info =
-            inferrer.types.getInferredTypeOf(parameter);
-        info.maybeResume();
-      });
-    }
     analyze();
     if (!continueAnalyzing) return;
     callsToAnalyze.forEach(analyzeCall);
     for(FunctionElement e in tracedElements) {
       e.functionSignature.forEachParameter((Element parameter) {
         ElementTypeInformation info =
             inferrer.types.getInferredTypeOf(parameter);
         info.disableInferenceForClosures = false;
       });
     }
@@ skipping 87 matching lines @@
 
   visitStaticCallSiteTypeInformation(StaticCallSiteTypeInformation info) {
     super.visitStaticCallSiteTypeInformation(info);
     if (info.calledElement == tracedElements.first
         && info.selector != null
         && info.selector.isGetter) {
       addNewEscapeInformation(info);
     }
   }
 }