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

runtime/vm/object.cc

 // Copyright (c) 2012, 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.
 
 #include "vm/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/cpu.h"
@@ skipping 9805 matching lines @@
 void Code::set_is_optimized(bool value) const {
   set_state_bits(OptimizedBit::update(value, raw_ptr()->state_bits_));
 }
 
 
 void Code::set_is_alive(bool value) const {
   set_state_bits(AliveBit::update(value, raw_ptr()->state_bits_));
 }
 
 
+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());
 }
 
 
 void Code::set_deopt_info_array(const Array& array) const {
   ASSERT(array.IsOld());
   StorePointer(&raw_ptr()->deopt_info_array_, array.raw());
 }
@@ skipping 153 matching lines @@
   ASSERT(Object::code_class() != Class::null());
   Code& result = Code::Handle();
   {
     uword size = Code::InstanceSize(pointer_offsets_length);
     RawObject* raw = Object::Allocate(Code::kClassId, size, Heap::kOld);
     NoGCScope no_gc;
     result ^= raw;
     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());
   }
   return result.raw();
 }
 
 
 RawCode* Code::FinalizeCode(const char* name,
                             Assembler* assembler,
                             bool optimized) {
@@ skipping 7104 matching lines @@
   return "_MirrorReference";
 }
 
 
 void MirrorReference::PrintToJSONStream(JSONStream* stream, bool ref) const {
   Instance::PrintToJSONStream(stream, ref);
 }
 
 
 }  // namespace dart