=== /a.ts ===
/// <reference types="JqUeRy" />
$.x;
>$.x : Symbol(x, Decl(index.d.ts, 0, 16))
>$ : Symbol($, Decl(index.d.ts, 0, 11))
>x : Symbol(x, Decl(index.d.ts, 0, 16))

=== /node_modules/@types/jquery/index.d.ts ===
declare var $: { x: any };
>$ : Symbol($, Decl(index.d.ts, 0, 11))
>x : Symbol(x, Decl(index.d.ts, 0, 16))