add lookup_take_Some

2 jobs for !313 with ralf/lookup_take_Some in 5 minutes and 9 seconds (queued for 6 seconds)
latest detached
Status Name Job ID Coverage
  Build
passed build-coq.8.10.2 #138014
fp

00:05:09

passed build-coq.8.13.2-mr #138013
fp

00:04:52