Instead attribute them properly as Bultin or BytecodeHandler.

Bug: v8:6240
Change-Id: I773a533b318afe52d63152edf5b16463801db8e9
Reviewed-on: https://chromium-review.googlesource.com/1249202Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56262}