Collect call site information and use that for estimating parameter types

lib/compiler/implementation/enqueue.dart

Index: lib/compiler/implementation/enqueue.dart
diff --git a/lib/compiler/implementation/enqueue.dart b/lib/compiler/implementation/enqueue.dart
index b2ff2a0985dfcb9c952f669c548a925e7eeb745a..c22c9d202b774f96f4e03529f5672361f0d08775 100644
--- a/lib/compiler/implementation/enqueue.dart
+++ b/lib/compiler/implementation/enqueue.dart
@@ -88,6 +88,12 @@ class Enqueuer {
     queue.add(new WorkItem(element, elements));
   }
 
+  void eagerRecompile(Element element) {
+    universe.generatedCode[element] = null;
+    universe.generatedBailoutCode[element] = null;
+    addToWorkList(element);
+  }
+
   bool canBeRecompiled(Element element) {
     // Only member functions can be recompiled. An exception to this is members
     // of closures. They are processed as part of the enclosing function and not