Function rustc_mir::dataflow::drop_flag_effects::drop_flag_effects_for_function_entry

pub(crate) fn drop_flag_effects_for_function_entry<'tcx, F>(
    tcx: TyCtxt<'tcx>, 
    body: &Body<'tcx>, 
    ctxt: &MoveDataParamEnv<'tcx>, 
    callback: F
) where
    F: FnMut(MovePathIndex, DropFlagState),