Bug 1010681 part 4 - Add crashtest for changes to conditional processing tests on animation elements; r=longsonr

Before the changes in this bug, this test used to produce an assertion:

  ABORT: Rewind in the middle of a forwards seek?

This was because for a timed element whose corresponding animation element fails
conditional processing tests, we were still performing milestone samples even
though we were skipping regular samples.

dom/smil/crashtests/1010681-1.svg

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg"
+     class="reftest-wait">
+<script>
+<![CDATA[
+
+function boom()
+{
+  var animate =
+    document.createElementNS("http://www.w3.org/2000/svg", "animate");
+  animate.setAttribute("dur", "2s");
+  document.documentElement.appendChild(animate);
+  animate.targetElement;
+  animate.requiredFeatures.insertItemBefore(0, 0);
+  document.documentElement.setCurrentTime(4);
+  document.documentElement.setCurrentTime(0);
+  document.documentElement.removeAttribute("class");
+}
+
+window.addEventListener("load", boom, false);
+
+]]>
+</script></svg>

dom/smil/crashtests/crashtests.list

@@ -51,3 +51,4 @@ load 697640-1.svg
 load 699325-1.svg
 load 709907-1.svg
 load 720103-1.svg
+load 1010681-1.svg