This ensures that both --trace-codegen as well as --print-ast work for
Ignition and print traces for generated bytecode as well. Here we do
consider "bytecode" to be "code" as well for tracing purposes.

R=rmcilroy@chromium.org

Review-Url: https://codereview.chromium.org/2443003003
Cr-Commit-Position: refs/heads/master@{#40531}