extensions/typescript-language-features/src/tsServer/bufferSyncSupport.ts/GetErrRequest/executeGetErrRequest
class GetErrRequest:	public static executeGetErrRequest(
		client: ITypeScriptServiceClient,
		files: ResourceMap<void>,
		onDone: () => void
	) {
		return new GetErrRequest(client, files, onDone);
	}