[cleanup] Refactor MaglevFrame::Iterate from IterateCompiledFrame

We visit the pointers in the same order as the ASCII diagram.

Bug: v8:7700
Change-Id: Ia11f49cb84b1d5abf4723aa5604c4a302f4ea79d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3789513Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82020}

src/execution/frames.h

@@ -22,6 +22,8 @@
 //         - InterpretedFrame
 //         - BaselineFrame
 //       - OptimizedFrame
+//         - MaglevFrame
+//         - TurboFanFrame
 //     - TypedFrameWithJSLinkage
 //       - BuiltinFrame
 //       - JavaScriptBuiltinContinuationFrame
@@ -937,6 +939,8 @@ class MaglevFrame : public OptimizedFrame {
     return static_cast<MaglevFrame*>(frame);
   }
 
+  void Iterate(RootVisitor* v) const override;
+
  protected:
   inline explicit MaglevFrame(StackFrameIteratorBase* iterator);