build/lib/tsb/builder.ts/LanguageServiceHost/collectDependents
class LanguageServiceHost:	collectDependents(filename: string, target: string[]): void {
		while (this._dependenciesRecomputeList.length) {
			this._processFile(this._dependenciesRecomputeList.pop()!);
		}
		filename = normalize(filename);
		const node = this._dependencies.lookup(filename);
		if (node) {
			utils.collections.forEach(node.incoming, entry => target.push(entry.key));
		}
	}