use rustc_data_structures::graph::iterate::{
- ControlFlow, NodeStatus, TriColorDepthFirstSearch, TriColorVisitor,
+ NodeStatus, TriColorDepthFirstSearch, TriColorVisitor,
};
use rustc_hir::intravisit::FnKind;
use rustc_middle::hir::map::blocks::FnLikeNode;
use rustc_middle::ty::{self, AssocItem, AssocItemContainer, Instance, TyCtxt};
use rustc_session::lint::builtin::UNCONDITIONAL_RECURSION;
use rustc_span::Span;
+use std::ops::ControlFlow;
crate fn check<'tcx>(tcx: TyCtxt<'tcx>, body: &Body<'tcx>) {
let def_id = body.source.def_id().expect_local();