Cleanups

runtime/vm/reusable_handles.h

Index: runtime/vm/reusable_handles.h
diff --git a/runtime/vm/reusable_handles.h b/runtime/vm/reusable_handles.h
index 8f057ea8c2fedb4da47ddad44d925658dde82103..beae36b12ce8dcdae643eaac3770b80077cdca12 100644
--- a/runtime/vm/reusable_handles.h
+++ b/runtime/vm/reusable_handles.h
@@ -11,9 +11,9 @@
 
 namespace dart {
 
-// Classes registered in REUSABLE_HANDLE_LIST have an isolate specific reusable
+// Classes registered in REUSABLE_HANDLE_LIST have an thread specific reusable
 // handle. A guard class (Reusable*ClassName*HandleScope) should be used in
-// regions of the virtual machine where the isolate specific reusable handle
+// regions of the virtual machine where the thread specific reusable handle
 // of that type is used. The class asserts that we do not add code that will
 // result in recursive uses of the class's reusable handle.
 //
@@ -21,7 +21,7 @@ namespace dart {
 // REUSABLE_*CLASSNAME*_HANDLESCOPE macro:
 //
 // {
-//   REUSABLE_ARRAY_HANDLESCOPE(isolate);
+//   REUSABLE_ARRAY_HANDLESCOPE(thread);
 //   ....
 //   ....
 //   Array& funcs = reused_array_handle.Handle();