src/vs/platform/quickinput/common/quickAccess.ts/QuickAccessRegistry/getQuickAccessProvider
class QuickAccessRegistry:	getQuickAccessProvider(prefix: string): IQuickAccessProviderDescriptor | undefined {
		const result = prefix ? (this.providers.find(provider => prefix.startsWith(provider.prefix)) || undefined) : undefined;

		return result || this.defaultProvider;
	}