src/vs/workbench/services/extensions/common/extHostCustomers.ts/ExtHostCustomersRegistryImpl/registerNamedCustomer
class ExtHostCustomersRegistryImpl:	public registerNamedCustomer<T extends IDisposable>(id: ProxyIdentifier<T>, ctor: IExtHostCustomerCtor<T>): void {
		const entry: IExtHostNamedCustomer<T> = [id, ctor];
		this._namedCustomers.push(entry);
	}