Move no_callback_scope_depth_ and cha_ from isolate -> thread

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 "vm/atomic.h"
 #include "vm/base_isolate.h"
 #include "vm/class_table.h"
 #include "vm/handles.h"
 #include "vm/megamorphic_cache_table.h"
 #include "vm/metrics.h"
 #include "vm/random.h"
 #include "vm/tags.h"
 #include "vm/thread.h"
 #include "vm/os_thread.h"
 #include "vm/timeline.h"
 #include "vm/timer.h"
 #include "vm/trace_buffer.h"
 
 namespace dart {
 
 // Forward declarations.
 class ApiState;
 class BackgroundCompiler;
 class Capability;
-class CHA;
 class CodeIndexTable;
 class CompilerStats;
 class Debugger;
 class DeoptContext;
 class HandleScope;
 class HandleVisitor;
 class Heap;
 class ICData;
 class IsolateProfilerData;
 class IsolateSpawnState;
@@ skipping 803 matching lines @@
     kRegisteredNameIndex = 0,
     kRegisteredHandlerIndex,
     kRegisteredEntrySize
   };
   RawGrowableObjectArray* registered_service_extension_handlers_;
 
   Metric* metrics_list_head_;
 
   bool compilation_allowed_;
 
-  // TODO(23153): Move this out of Isolate/Thread.
-  CHA* cha_;
-
   // Isolate list next pointer.
   Isolate* next_;
 
   // Used to wake the isolate when it is in the pause event loop.
   Monitor* pause_loop_monitor_;
 
 #define ISOLATE_METRIC_VARIABLE(type, variable, name, unit)                    \
   type metric_##variable##_;
   ISOLATE_METRIC_LIST(ISOLATE_METRIC_VARIABLE);
 #undef ISOLATE_METRIC_VARIABLE
@@ skipping 182 matching lines @@
   uint8_t* serialized_message_;
   intptr_t serialized_message_len_;
   Isolate::Flags isolate_flags_;
   bool paused_;
   bool errors_are_fatal_;
 };
 
 }  // namespace dart
 
 #endif  // VM_ISOLATE_H_