When using --trace-ignition-codegen, the name for each bytecode handler is
missing. The reason is that we find the name of a bytecode by looking up the
code object entry in the interpreter's dispatch table, which is not yet
populated at this point.

BUG=

Review-Url: https://codereview.chromium.org/2771503004
Cr-Commit-Position: refs/heads/master@{#44068}