incorrect indentation in some edge cases

[manuel3108]

detected while implementing #44

declare global {
	namespace App {
		interface Error {
			prop: boolean;
		}
	}
}

export {};

gets transformed to

declare global {

		namespace App {
			interface Error {prop: boolean}
		}

}

export {};

If you remove the prop though, everything works as expected:

declare global {
	namespace App {
		interface Error {}
	}
}

export {};