Search filtering seems broken

[mstange]

This profile should display a sample because the stack contains a "FetchStreamReader" frame, so it should be match by a search for "fetch": https://share.firefox.dev/466MJwC

┆Issue is synchronized with this Jira Task

[mstange]

I'm passing funcTable.length instead of stackTable.length to the makeBitSet function. I will add bounds checking and a test.