Make no_handle_scope_depth_ an int32_t field as that is what the accessor returns and there is chec…

runtime/vm/thread.h

 // Copyright (c) 2015, 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_THREAD_H_
 #define VM_THREAD_H_
 
 #include "include/dart_api.h"
 #include "vm/globals.h"
 #include "vm/handles.h"
@@ skipping 396 matching lines @@
   Zone* zone_;
   ApiLocalScope* api_reusable_scope_;
   ApiLocalScope* api_top_scope_;
   uword top_exit_frame_info_;
   StackResource* top_resource_;
   LongJumpScope* long_jump_base_;
   StoreBufferBlock* store_buffer_block_;
   int32_t no_callback_scope_depth_;
 #if defined(DEBUG)
   HandleScope* top_handle_scope_;
-  intptr_t no_handle_scope_depth_;
+  int32_t no_handle_scope_depth_;
   int32_t no_safepoint_scope_depth_;
 #endif
   VMHandles reusable_handles_;
 
   // Compiler state:
   CHA* cha_;
   intptr_t deopt_id_;  // Compilation specific counter.
   uword vm_tag_;
   RawGrowableObjectArray* pending_functions_;
 
@@ skipping 70 matching lines @@
 // Disable thread interrupts.
 class DisableThreadInterruptsScope : public StackResource {
  public:
   explicit DisableThreadInterruptsScope(Thread* thread);
   ~DisableThreadInterruptsScope();
 };
 
 }  // namespace dart
 
 #endif  // VM_THREAD_H_