src/vs/workbench/api/browser/mainThreadSCM.ts/MainThreadSCM/$showValidationMessage
class MainThreadSCM:	$showValidationMessage(sourceControlHandle: number, message: string, type: InputValidationType) {
		const repository = this._repositories.get(sourceControlHandle);
		if (!repository) {
			return;
		}

		repository.input.showValidationMessage(message, type);
	}