src/vs/workbench/api/common/extHostExtensionService.ts/AbstractExtHostExtensionService/$startExtensionHost
class AbstractExtHostExtensionService:	public $startExtensionHost(enabledExtensionIds: ExtensionIdentifier[]): Promise<void> {
		this._registry.keepOnly(enabledExtensionIds);
		return this._startExtensionHost();
	}