Rewrite the 'window.onerror' tests.

LayoutTests/fast/events/window-onerror-11-expected.txt

Index: LayoutTests/fast/events/window-onerror-11-expected.txt
diff --git a/LayoutTests/fast/events/window-onerror-11-expected.txt b/LayoutTests/fast/events/window-onerror-11-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..2d9e294981ff856a10be088ee5d029c21b708d01
--- /dev/null
+++ b/LayoutTests/fast/events/window-onerror-11-expected.txt
@@ -0,0 +1,10 @@
+This test should trigger 'window.onerror' fo the syntax error in the attribute handler, regardless of how it's set.
+
+Button.  Button 2 Button 3
+window.onerror: "Uncaught SyntaxError: Unexpected token %" at window-onerror-11.html (21, 77)
+- Returning 'true': the error should not be reported in the console as an unhandled exception.
+window.onerror: "Uncaught SyntaxError: Unexpected token %" at window-onerror-11.html (34, 77)
+- Returning 'true': the error should not be reported in the console as an unhandled exception.
+window.onerror: "Uncaught SyntaxError: Unexpected token %" at window-onerror-11.html (34, 77)
+- Returning 'true': the error should not be reported in the console as an unhandled exception.
+