src/vs/workbench/contrib/extensions/browser/extensionsWorkbenchService.ts/ExtensionsWorkbenchService/isExtensionIgnoredToSync
class ExtensionsWorkbenchService:	isExtensionIgnoredToSync(extension: IExtension): boolean {
		return extension.local ? !this.isInstalledExtensionSynced(extension.local)
			: this.extensionsSyncManagementService.hasToNeverSyncExtension(extension.identifier.id);
	}