Relocate suspended generator activations when enabling debug mode

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index 5aea3b5106bc741386914a21207499ff6471d5c3..3be682c276ded17a3c96e9fb6aa4cb5235573f64 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -5840,6 +5840,11 @@ SMI_ACCESSORS(JSGeneratorObject, continuation, kContinuationOffset)
 ACCESSORS(JSGeneratorObject, operand_stack, FixedArray, kOperandStackOffset)
 SMI_ACCESSORS(JSGeneratorObject, stack_handler_index, kStackHandlerIndexOffset)
 
+bool JSGeneratorObject::is_suspended() {
+  ASSERT_LT(kGeneratorExecuting, kGeneratorClosed);
+  ASSERT_EQ(kGeneratorClosed, 0);
+  return continuation() > 0;
+}
 
 JSGeneratorObject* JSGeneratorObject::cast(Object* obj) {
   ASSERT(obj->IsJSGeneratorObject());