[REF] component: move patchqueue management to fiber

part of #293

tests/helpers.ts

@@ -99,7 +99,12 @@ export function renderToDOM(
  * Note that the result of renderToString is guaranteed to be the same as the
  * one from QWeb.
  */
-export function renderToString(qweb: QWeb, t: string, context: EvalContext = {}, extra?: any): string {
+export function renderToString(
+  qweb: QWeb,
+  t: string,
+  context: EvalContext = {},
+  extra?: any
+): string {
   const node = renderToDOM(qweb, t, context, extra);
   const result = node instanceof Text ? node.textContent! : node.outerHTML;
   if (result !== qweb.renderToString(t, context, extra)) {