Convert some text-based-repaint tests for spv2

LayoutTests/paint/invalidation/spv2/overflow-flipped-writing-mode-block.html

-<script src="resources/text-based-repaint.js"></script>
+<!-- Based on fast/repaint/overflow-flipped-writing-mode-block.html -->
+<script src="resources/paint-invalidation-test.js"></script>
 <script>
-    onload = runRepaintTest;
+    onload = runPaintInvalidationTest;
 
-    function repaintTest()
+    window.expectedPaintInvalidationObjects = [
+        "LayoutBlockFlow DIV id='target'",
+    ];
+    function paintInvalidationTest()
     {
         document.getElementById("target").style.visibility = "hidden";
     }
 </script>
 <div style="height: 100px; width: 100px; background-color: red; -webkit-writing-mode: horizontal-bt;">
     <div style="height: 25px;">
         <div style="height: 100px; background-color: green;"></div>
     </div>
 </div>
 <div id="target" style="height: 50px; width: 100px; background-color: red; margin-top: -100px;"></div>