Searching in the flame graph should highlight the find matches

[mstange]

Example profile: https://share.firefox.dev/3dwhccu

I'm searching for a file name, but can't see which call node my search matched.

This is issue is broken out from #2241.

┆Issue is synchronized with this Jira Task

[gregtatum]

I ran into this today, and switched back to the call tree to solve it.

[julienw]

Yes this is something we should fix.
See also #2957 for a similar thing for the stack chart.