Function create_coroutine_drop_shim

fn create_coroutine_drop_shim<'tcx>(
    tcx: TyCtxt<'tcx>,
    transform: &TransformVisitor<'tcx>,
    coroutine_ty: Ty<'tcx>,
    body: &Body<'tcx>,
    drop_clean: BasicBlock,
) -> Body<'tcx>