[cleanup] Fix misplaced undef in frames.h

Move FRAME_SUMMARY_FIELD undef to after its define.

Bug: v8:8834
Change-Id: I431b3b8fd3de9589c10364178fd00882d74f19bc
Reviewed-on: https://chromium-review.googlesource.com/c/1480389Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59788}

src/frames.h

@@ -559,7 +559,6 @@ class FrameSummary {
     int byte_offset_;
   };
 
-#undef FRAME_SUMMARY_FIELD
 #define FRAME_SUMMARY_CONS(kind, type, field, desc) \
   FrameSummary(type summ) : field(summ) {}  // NOLINT
   FRAME_SUMMARY_VARIANTS(FRAME_SUMMARY_CONS)
@@ -604,6 +603,7 @@ class FrameSummary {
     FrameSummaryBase base_;
     FRAME_SUMMARY_VARIANTS(FRAME_SUMMARY_FIELD)
   };
+#undef FRAME_SUMMARY_FIELD
 };
 
 class StandardFrame : public StackFrame {