Speed up detach by reducing translation retries

Separating out from #4219 which is about correctness problems.

With the stats from PR #4228 on a large ~600-thread app under drcachesim, I observed ~500 retries (40x more than plain DR) on detach, and a detach time increase of >2x vs plain DR. This issue trying to reduce that by adding translation handling for more suspend locations so we don't have to retry to suspend.

Xref #37, #38 on ptrace attach/detach which might also speed things up vs signals.