Rewrite the 'window.onerror' tests.

LayoutTests/fast/events/window-onerror-10-expected.txt

Index: LayoutTests/fast/events/window-onerror-10-expected.txt
diff --git a/LayoutTests/fast/events/window-onerror-10-expected.txt b/LayoutTests/fast/events/window-onerror-10-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..ab309926a9d444253606cf716d430dd15cba68ee
--- /dev/null
+++ b/LayoutTests/fast/events/window-onerror-10-expected.txt
@@ -0,0 +1,14 @@
+This test should trigger 'window.onerror' multiple times, and successfully handle the errors.
+
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
+
+
+window.onerror: "Uncaught Error: Inline exception." at onerror-test.js (Line: 6, Column: 40)
+Returning 'true': the error should not be reported in the console as an unhandled exception.
+window.onerror: "Uncaught Error: exception in onload" at onerror-test.js (Line: 6, Column: 40)
+Returning 'true': the error should not be reported in the console as an unhandled exception.
+window.onerror: "Uncaught Error: exception in setTimeout" at onerror-test.js (Line: 6, Column: 40)
+PASS successfullyParsed is true
+
+TEST COMPLETE
+