src/vs/base/parts/ipc/common/ipc.ts/ChannelServer/disposeActiveRequest
class ChannelServer:	private disposeActiveRequest(request: IRawRequest): void {
		const disposable = this.activeRequests.get(request.id);

		if (disposable) {
			disposable.dispose();
			this.activeRequests.delete(request.id);
		}
	}