Do some compile-time analysis to remove unreachable-code warnings at compile-time for uses of `accepting-values'.
Do some compile-time analysis to remove unreachable-code warnings at
compile-time for uses of `accepting-values'.

slyrus/mcclim,antifuchs/mcclim,onixie/mcclim,antifuchs/mcclim,onixie/mcclim,swflint/McCLIM,onixie/mcclim,swflint/McCLIM,swflint/McCLIM,slyrus/mcclim