[bug] Changes type to reference to the wrong variable

[nicolo-ribaudo]

Bug report

Input code

// index.ts
import { fn } from "./other-file";
export function a() {}
a.fn = fn;

// other-file.ts
export function fn() {}

Actual output

// Generated by dts-bundle-generator v9.5.1

declare function fn(): void;
export declare function a(): void;
export declare namespace a {
	var fn: typeof fn;
}

export {};

Notice that the type of var fn refers to var fn and not to function fn

Expected output

Maybe this?

// Generated by dts-bundle-generator v9.5.1

declare function fn(): void;
type fn_type = typeof fn;
export declare function a(): void;
export declare namespace a {
	var fn: fn_type;
}

export {};

or this

// Generated by dts-bundle-generator v9.5.1

declare function fn$1(): void;
export declare function a(): void;
export declare namespace a {
	var fn: typeof fn$1;
}

export {};

Additional context

This also happens in rollup-plugin-dts