=== tests/cases/compiler/a.d.ts ===

declare var a: number;
>a : Symbol(a, Decl(a.d.ts, 1, 11))

export = a;  // OK, in ambient context
>a : Symbol(a, Decl(a.d.ts, 1, 11))

=== tests/cases/compiler/b.ts ===
import * as a from "a";
>a : Symbol(a, Decl(b.ts, 0, 6))