Find all references for ambient module

// declarations.d.ts
declare module "x" {
    export const x: number;
}

// index.ts
import {x} from "x";

Goto-declaration for "x" in index.ts works, but find-all-references for "x" in declarations.d.ts finds only itself.

In this case one can simply look through each of export in the module's body and find all of their references; but for shorthand ambient modules (declare module "x";) that won't work, as there is no module body.

使用 declarations.d.ts 和 index.ts 片段重现该行为，然后跟踪 ambient module 及其导出符号的 find-all-references 路径。当从 declarations.d.ts 执行搜索时包含来自 index.ts 的引用，并且同时处理简写的 ambient modules，即表示完成；为这两种形式添加或更新覆盖范围。