src/vs/editor/common/languages/languageConfigurationRegistry.ts/LanguageConfigurationService/getLanguageConfiguration
class LanguageConfigurationService:	public getLanguageConfiguration(languageId: string): ResolvedLanguageConfiguration {
		let result = this.configurations.get(languageId);
		if (!result) {
			result = computeConfig(languageId, this._registry, this.configurationService, this.languageService);
			this.configurations.set(languageId, result);
		}
		return result;
	}