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

runtime/vm/isolate.h

Index: runtime/vm/isolate.h
diff --git a/runtime/vm/isolate.h b/runtime/vm/isolate.h
index 9fa436116570519ad2e35f6bf465a721c7923656..8202486384be6590e1b6b92b942880cac776bc54 100644
--- a/runtime/vm/isolate.h
+++ b/runtime/vm/isolate.h
@@ -91,6 +91,10 @@ class IsolateVisitor {
 
   virtual void VisitIsolate(Isolate* isolate) = 0;
 
+ protected:
+  // Checks if an isolate is a vm or service isolate.
+  bool IsSpecialIsolate(Isolate* isolate) const;

[Cutch, 2016/12/12 22:47:26]

Let's name it something like:

IsVMInternalIsolate

comment:

// Returns true if |isolate| is the VM isolate or a service isolate.

[bkonyi, 2016/12/12 22:51:20]

Done.

[rmacnak, 2016/12/12 22:51:38]

Probably the kernel isolate too.

+
  private:
   DISALLOW_COPY_AND_ASSIGN(IsolateVisitor);
 };