DOMException toString is not correct

LayoutTests/fast/dom/Range/compareBoundaryPoints-1.html

Index: LayoutTests/fast/dom/Range/compareBoundaryPoints-1.html
diff --git a/LayoutTests/fast/dom/Range/compareBoundaryPoints-1.html b/LayoutTests/fast/dom/Range/compareBoundaryPoints-1.html
index 64b5293a5c37a01b02f69ac545f2b54fd3894b36..992ba2608da6231dcf334f15d3258a666dc52817 100644
--- a/LayoutTests/fast/dom/Range/compareBoundaryPoints-1.html
+++ b/LayoutTests/fast/dom/Range/compareBoundaryPoints-1.html
@@ -32,7 +32,7 @@ try {
     var compare = r1.compareBoundaryPoints(Range.START_TO_START, r2);
     log("Error.  compareBoundaryPoints should have thrown an exception.");
 } catch (e) {
-    var expected = "Error: WrongDocumentError: DOM Exception 4";
+    var expected = "WrongDocumentError: A Node was used in a different document than the one that created it (that doesn't support it).";
     if (e != expected)
         log("Error.  Exception thrown should have been: " + expected);
 }