Fix bug with CHA dependencies by recording a set of classes for registering code.

runtime/vm/isolate.h

 // Copyright (c) 2013, 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.
 
 #ifndef VM_ISOLATE_H_
 #define VM_ISOLATE_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/thread.h"
 #include "vm/base_isolate.h"
 #include "vm/class_table.h"
 #include "vm/counters.h"
 #include "vm/handles.h"
 #include "vm/megamorphic_cache_table.h"
 #include "vm/random.h"
 #include "vm/store_buffer.h"
 #include "vm/tags.h"
 #include "vm/trace_buffer.h"
 #include "vm/timer.h"
 
 namespace dart {
 
 // Forward declarations.
 class AbstractType;
 class ApiState;
 class Array;
 class Capability;
+class CHA;
 class Class;
 class Code;
 class CodeIndexTable;
 class Debugger;
 class DeoptContext;
 class Error;
 class ExceptionHandlers;
 class Field;
 class Function;
 class GrowableObjectArray;
@@ skipping 97 matching lines @@
   StoreBuffer* store_buffer() { return &store_buffer_; }
   static intptr_t store_buffer_offset() {
     return OFFSET_OF(Isolate, store_buffer_);
   }
 
   ClassTable* class_table() { return &class_table_; }
   static intptr_t class_table_offset() {
     return OFFSET_OF(Isolate, class_table_);
   }
 
-  bool cha_used() const { return cha_used_; }
-  void set_cha_used(bool value) { cha_used_ = value; }
+  CHA* cha() const { return cha_; }
+  void set_cha(CHA* value) { cha_ = value; }
 
   MegamorphicCacheTable* megamorphic_cache_table() {
     return &megamorphic_cache_table_;
   }
 
   Dart_MessageNotifyCallback message_notify_callback() const {
     return message_notify_callback_;
   }
   void set_message_notify_callback(Dart_MessageNotifyCallback value) {
     message_notify_callback_ = value;
@@ skipping 482 matching lines @@
   DeoptContext* deopt_context_;
 
   // Status support.
   char* stacktrace_;
   intptr_t stack_frame_index_;
 
   // Timestamps of last operation via service.
   int64_t last_allocationprofile_accumulator_reset_timestamp_;
   int64_t last_allocationprofile_gc_timestamp_;
 
-  bool cha_used_;
+  CHA* cha_;
 
   // Ring buffer of objects assigned an id.
   ObjectIdRing* object_id_ring_;
 
   // Trace buffer support.
   TraceBuffer* trace_buffer_;
 
   IsolateProfilerData* profiler_data_;
   Mutex profiler_data_mutex_;
   InterruptableThreadState* thread_state_;
@@ skipping 139 matching lines @@
   char* script_url_;
   char* library_url_;
   char* class_name_;
   char* function_name_;
   char* exception_callback_name_;
 };
 
 }  // namespace dart
 
 #endif  // VM_ISOLATE_H_