ClassicAPI ships modern IsInGroup() / IsInRaid() backports — drop the
GetNumPartyMembers() > 0 and GetNumRaidMembers() > 0 idioms (and the
GetNumPartyMembers() > 0 or GetNumRaidMembers() > 0 conflation) for the
named-intent variants. UnitInRaid("player") → IsInRaid() at the same
sites.