Remove parent_level field of function type parameters.

runtime/vm/bootstrap.cc

Index: runtime/vm/bootstrap.cc
diff --git a/runtime/vm/bootstrap.cc b/runtime/vm/bootstrap.cc
index d90c7321eea087b51d8585725490b0e5b4118f63..f633cdbb1ce40b04213bfa923a2f0f7e738429c1 100644
--- a/runtime/vm/bootstrap.cc
+++ b/runtime/vm/bootstrap.cc
@@ -274,13 +274,15 @@ static void Finish(Thread* thread, bool from_kernel) {
 #if defined(DEBUG)
   // Verify that closure field offsets are identical in Dart and C++.
   const Array& fields = Array::Handle(zone, cls.fields());
-  ASSERT(fields.Length() == 3);
+  ASSERT(fields.Length() == 4);
   Field& field = Field::Handle(zone);
   field ^= fields.At(0);
-  ASSERT(field.Offset() == Closure::instantiator_offset());
+  ASSERT(field.Offset() == Closure::instantiator_type_arguments_offset());
   field ^= fields.At(1);
-  ASSERT(field.Offset() == Closure::function_offset());
+  ASSERT(field.Offset() == Closure::function_type_arguments_offset());
   field ^= fields.At(2);
+  ASSERT(field.Offset() == Closure::function_offset());
+  field ^= fields.At(3);
   ASSERT(field.Offset() == Closure::context_offset());
 #endif  // defined(DEBUG)