{"ast_node_type":"function","tokens":[{"end":30,"kind":"keyword","start":0,"text":"fn"}]}
    fn discover_masters<'tcx>(
pub(crate) fn cleanup_kinds(mir: &mir::Body<'_>) -> IndexVec<mir::BasicBlock, CleanupKind> {
        result: &mut IndexSlice<mir::BasicBlock, CleanupKind>,