Mark optimized code that used CHA for optimization so that lazy class 'finalization' does not inval…

runtime/vm/object.cc

Index: runtime/vm/object.cc
===================================================================
--- runtime/vm/object.cc	(revision 32176)
+++ runtime/vm/object.cc	(working copy)
@@ -9823,6 +9823,11 @@
 }
 
 
+void Code::set_has_used_cha(bool value) const {
+  set_state_bits(UsedCHABit::update(value, raw_ptr()->state_bits_));
+}
+
+
 void Code::set_stackmaps(const Array& maps) const {
   ASSERT(maps.IsOld());
   StorePointer(&raw_ptr()->stackmaps_, maps.raw());
@@ -9996,6 +10001,7 @@
     result.set_pointer_offsets_length(pointer_offsets_length);
     result.set_is_optimized(false);
     result.set_is_alive(true);
+    result.set_has_used_cha(false);
     result.set_comments(Comments::New(0));
     result.set_pc_descriptors(Object::empty_descriptors());
   }