use if_chain::if_chain;
-use matches::matches;
-use rustc::declare_lint_pass;
-use rustc::hir::intravisit::FnKind;
-use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
use rustc::ty;
+use rustc_ast::ast::LitKind;
use rustc_errors::Applicability;
-use rustc_hir::*;
-use rustc_session::declare_tool_lint;
+use rustc_hir::intravisit::FnKind;
+use rustc_hir::{
+ def, BinOpKind, BindingAnnotation, Body, Expr, ExprKind, FnDecl, HirId, Mutability, PatKind, Stmt, StmtKind, Ty,
+ TyKind, UnOp,
+};
+use rustc_lint::{LateContext, LateLintPass};
+use rustc_session::{declare_lint_pass, declare_tool_lint};
use rustc_span::source_map::{ExpnKind, Span};
-use syntax::ast::LitKind;
use crate::consts::{constant, Constant};
use crate::utils::sugg::Sugg;