Typecheck constructor initializers properly

test/dart_codegen/expect/async/schedule_microtask.dart

Index: test/dart_codegen/expect/async/schedule_microtask.dart
diff --git a/test/dart_codegen/expect/async/schedule_microtask.dart b/test/dart_codegen/expect/async/schedule_microtask.dart
index d8cdb07348d662d2e7a133cca7433a6fce2686e7..003706d7f3d98c8e527f0e8739d3051bfa601cac 100644
--- a/test/dart_codegen/expect/async/schedule_microtask.dart
+++ b/test/dart_codegen/expect/async/schedule_microtask.dart
@@ -30,19 +30,19 @@ _isInCallbackLoop = true;
 }
  void _scheduleAsyncCallback(callback) {
 if (_nextCallback == null) {
-  _nextCallback = _lastCallback = new _AsyncCallbackEntry(callback);
+  _nextCallback = _lastCallback = new _AsyncCallbackEntry(DDC$RT.cast(callback, dynamic, __t36, "CastGeneral", """line 66, column 61 of dart:async/schedule_microtask.dart: """, callback is __t36, false));
    if (!_isInCallbackLoop) {
     _AsyncRun._scheduleImmediate(_asyncRunCallback);
     }
   }
  else {
-  _AsyncCallbackEntry newEntry = new _AsyncCallbackEntry(callback);
+  _AsyncCallbackEntry newEntry = new _AsyncCallbackEntry(DDC$RT.cast(callback, dynamic, __t36, "CastGeneral", """line 71, column 60 of dart:async/schedule_microtask.dart: """, callback is __t36, false));
    _lastCallback.next = newEntry;
    _lastCallback = newEntry;
   }
 }
  void _schedulePriorityAsyncCallback(callback) {
-_AsyncCallbackEntry entry = new _AsyncCallbackEntry(callback);
+_AsyncCallbackEntry entry = new _AsyncCallbackEntry(DDC$RT.cast(callback, dynamic, __t36, "CastGeneral", """line 84, column 55 of dart:async/schedule_microtask.dart: """, callback is __t36, false));
  if (_nextCallback == null) {
   _scheduleAsyncCallback(callback);
    _lastPriorityCallback = _lastCallback;
@@ -68,3 +68,4 @@ if (identical(_ROOT_ZONE, Zone.current)) {
 }
  class _AsyncRun {external static void _scheduleImmediate(void callback());
 }
+ typedef void __t36();