//! lint on if branches that could be swapped so no `!` operation is necessary
//! on the condition
+use clippy_utils::diagnostics::span_lint_and_help;
use rustc_ast::ast::{BinOpKind, Expr, ExprKind, UnOp};
use rustc_lint::{EarlyContext, EarlyLintPass, LintContext};
use rustc_middle::lint::in_external_macro;
use rustc_session::{declare_lint_pass, declare_tool_lint};
-use crate::utils::span_lint_and_help;
-
declare_clippy_lint! {
/// **What it does:** Checks for usage of `!` or `!=` in an if condition with an
/// else branch.