{"ast_node_type":"variable","tokens":[{"end":99,"kind":"keyword","start":0,"text":"&&"}]}
                            && let mut expr_finder = (FindLetExpr { span: old, result: None, tcx })
                            && let hir_body = tcx.hir_body(body_id)
                            && let Some((let_expr_span, let_expr_pat, let_expr_init)) = {