Fix IterateCompiledFrame for embedded constant pools.

Do not visit the constant pool pointer frame slot.

TEST=cctest/test-api/Regress137496 --ignition
R=danno@chromium.org, mcilroy@chromium.org, bjaideep@ca.ibm.com
BUG=

Review-Url: https://codereview.chromium.org/1950623002
Cr-Commit-Position: refs/heads/master@{#36028}

src/frames.cc

@@ -718,7 +718,8 @@ void StandardFrame::IterateCompiledFrame(ObjectVisitor* v) const {
       (frame_header_size + StandardFrameConstants::kFixedFrameSizeAboveFp);
 
   Object** frame_header_base = &Memory::Object_at(fp() - frame_header_size);
-  Object** frame_header_limit = &Memory::Object_at(fp());
+  Object** frame_header_limit =
+      &Memory::Object_at(fp() - StandardFrameConstants::kCPSlotSize);
   Object** parameters_base = &Memory::Object_at(sp());
   Object** parameters_limit = frame_header_base - slot_space / kPointerSize;