src/vs/workbench/contrib/codeEditor/browser/languageConfigurationExtensionPoint.ts/LanguageConfigurationFileHandler/_loadConfigurationsForMode
class LanguageConfigurationFileHandler:	private _loadConfigurationsForMode(languageIdentifier: LanguageIdentifier): void {
		if (this._done[languageIdentifier.id]) {
			return;
		}
		this._done[languageIdentifier.id] = true;

		const configurationFiles = this._modeService.getConfigurationFiles(languageIdentifier.language);
		configurationFiles.forEach((configFileLocation) => this._handleConfigFile(languageIdentifier, configFileLocation));
	}