{"ast_node_type":"other","tokens":[{"end":60,"kind":"keyword","start":0,"text":"never_initialized_mut_locals:"}]}
    never_initialized_mut_locals: &'a mut FxIndexSet<Local>,
    temporary_used_locals: FxIndexSet<Local>,
    mbcx: &'a mut MirBorrowckCtxt<'b, 'infcx, 'tcx>,