Added method to IsolateVisitor to check for special isolates (i.e., service / vm isolates) since th…

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 RUNTIME_VM_ISOLATE_H_
 #define RUNTIME_VM_ISOLATE_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/atomic.h"
@@ skipping 73 matching lines @@
 };
 
 
 class IsolateVisitor {
  public:
   IsolateVisitor() {}
   virtual ~IsolateVisitor() {}
 
   virtual void VisitIsolate(Isolate* isolate) = 0;
 
+ protected:
+  // Returns true if |isolate| is the VM or service isolate.
+  bool IsVMInternalIsolate(Isolate* isolate) const;
+
  private:
   DISALLOW_COPY_AND_ASSIGN(IsolateVisitor);
 };
 
 
 // Disallow OOB message handling within this scope.
 class NoOOBMessageScope : public StackResource {
  public:
   explicit NoOOBMessageScope(Thread* thread);
   ~NoOOBMessageScope();
@@ skipping 884 matching lines @@
   intptr_t* spawn_count_;
 
   Dart_IsolateFlags isolate_flags_;
   bool paused_;
   bool errors_are_fatal_;
 };
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_ISOLATE_H_