{"ast_node_type":"variable","tokens":[{"end":50,"kind":"keyword","start":0,"text":"if"}]}
        if let hir::StmtKind::Let(loc) = stmt.kind
    fn check_stmt(&mut self, cx: &LateContext<'tcx>, stmt: &Stmt<'_>) {
            && let hir::PatKind::Binding(ba, _, _, _) = loc.pat.kind