src/vs/platform/quickinput/browser/helpQuickAccess.ts/HelpQuickAccessProvider/getQuickAccessProviders
class HelpQuickAccessProvider:	getQuickAccessProviders(): IHelpQuickAccessPickItem[] {
		const providers: IHelpQuickAccessPickItem[] = this.registry
			.getQuickAccessProviders()
			.sort((providerA, providerB) => providerA.prefix.localeCompare(providerB.prefix))
			.flatMap(provider => this.createPicks(provider));

		return providers;
	}