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..fd06b6eaeb509d612f1960b04cee5e994f62c648
--- /dev/null
+++ b/LayoutTests/fast/events/window-onerror-11-expected.txt
@@ -0,0 +1,12 @@
+window.onerror: "Uncaught SyntaxError: Unexpected token %" at window-onerror-11.html (9, 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 (31, 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 (31, 77)
+- Returning 'true': the error should not be reported in the console as an unhandled exception.
+PASS successfullyParsed is true
+
+TEST COMPLETE
+This test should trigger 'window.onerror' for the syntax error in the attribute handler, regardless of how it's set.
+
+Button.  Button 2 Button 3