view .arcconfig @ 49979:f5b168979626

rust: move `filter_map_results` to public util

This is a useful general-purpose function.

It will be used in the next changesets.

{
    "conduit_uri": "https://phab.mercurial-scm.org/api",
    "phabricator.uri": "https://phab.mercurial-scm.org/",
    "repository.callsign": "HG",
    "arc.land.onto.default": "@",
    "base": "hg:.^"
}