expect no-undef support comment declare like eslint

[samegek]

it should ok, because gloabl decalre, but error
deno lint --rules-include=no-undef a.js

/* global a */
let b = 1
let c = a + b

output error[no-undef]: a is not defined

it should output error, a is not defined, but ok
use deno lint --rules-include=no-undef a.js

if(typeof a === "string"){console.log("hello")}