src/vs/workbench/api/browser/mainThreadLanguageFeatures.ts/MainThreadLanguageFeatures/$emitCodeLensEvent
class MainThreadLanguageFeatures:	$emitCodeLensEvent(eventHandle: number, event?: any): void {
		const obj = this._registrations.get(eventHandle);
		if (obj instanceof Emitter) {
			obj.fire(event);
		}
	}