Function lint_nonexhaustive_missing_variants

pub(crate) fn lint_nonexhaustive_missing_variants<'p, 'tcx>(
    rcx: &RustcPatCtxt<'p, 'tcx>,
    arms: &[MatchArm<'p, RustcPatCtxt<'p, 'tcx>>],
    pat_column: &PatternColumn<'p, RustcPatCtxt<'p, 'tcx>>,
    scrut_ty: RevealedTy<'tcx>,
) -> Result<(), ErrorGuaranteed>