-use crate::utils::is_adjusted;
-use crate::utils::span_lint;
-use rustc::hir::def::Def;
-use rustc::hir::{Expr, ExprKind};
-use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
-use rustc::{declare_tool_lint, lint_array};
+use clippy_utils::diagnostics::span_lint;
+use clippy_utils::is_adjusted;
+use rustc_hir::{Expr, ExprKind};
+use rustc_lint::{LateContext, LateLintPass};
+use rustc_session::{declare_lint_pass, declare_tool_lint};