this is a fourth part of https://codereview.chromium.org/1012633002

In another patch I'll collect the inlining tree in cpu-profiler CodeEntry
Each leaf for an inlined function will have a list of deopts and their pc offsets.
So when deopt happens I'll be able to map the deopt pc_offset into
inlined function id and point the web developer to the exact place
where deopt has happened even if it was in the inlined function.

BUG=chromium:452067
LOG=n

Review URL: https://codereview.chromium.org/1013753007

Cr-Commit-Position: refs/heads/master@{#27247}