use crate::utils::paths;
use crate::utils::{iter_input_pats, match_type, method_chain_args, snippet, span_lint_and_then};
use if_chain::if_chain;
-use rustc::ty::{self, Ty};
use rustc_errors::Applicability;
use rustc_hir as hir;
use rustc_lint::{LateContext, LateLintPass};
+use rustc_middle::ty::{self, Ty};
use rustc_session::{declare_lint_pass, declare_tool_lint};
use rustc_span::source_map::Span;