Function rustc_mir_transform::generator::create_generator_drop_shim

fn create_generator_drop_shim<'tcx>(
    tcx: TyCtxt<'tcx>, 
    transform: &TransformVisitor<'tcx>, 
    gen_ty: Ty<'tcx>, 
    body: &mut Body<'tcx>, 
    drop_clean: BasicBlock
) -> Body<'tcx>