use crate::utils::{snippet_with_applicability, span_lint_and_then, walk_ptrs_ty};
use if_chain::if_chain;
use rustc::hir::map::Map;
-use rustc::lint::{LateContext, LateLintPass};
use rustc_errors::Applicability;
use rustc_hir::intravisit::{walk_expr, NestedVisitorMap, Visitor};
use rustc_hir::*;
+use rustc_lint::{LateContext, LateLintPass};
use rustc_session::{declare_lint_pass, declare_tool_lint};
use rustc_span::source_map::Span;