src/vs/workbench/contrib/languageDetection/browser/languageDetection.contribution.ts/LanguageDetectionStatusContribution/constructor
class LanguageDetectionStatusContribution:	constructor(
		@ILanguageDetectionService private readonly _languageDetectionService: ILanguageDetectionService,
		@IStatusbarService private readonly _statusBarService: IStatusbarService,
		@IConfigurationService private readonly _configurationService: IConfigurationService,
		@IEditorService private readonly _editorService: IEditorService,
		@ILanguageService private readonly _languageService: ILanguageService,
		@IKeybindingService private readonly _keybindingService: IKeybindingService,
	) {
		_editorService.onDidActiveEditorChange(() => this._update(true), this, this._disposables);
		this._update(false);
	}