1) The hardcoded strings were converted into DeoptReason enum.

2) Deopt comment were converted into a pair location and deopt reason entries so
the deopt reason tracking mode would less affect the size of the RelocInfo table and heap.

3) DeoptReason entry in RelocInfo reuses kCommentTag value and generates short entry in RelocInfo table.

BUG=452067
LOG=n

Review URL: https://codereview.chromium.org/874323003

Cr-Commit-Position: refs/heads/master@{#26434}