chromium/third_party/blink/manual_tests/inspector/styled-error-bubbles-in-scripts.html

<script src="resources/script-error.js"></script>
<p>Test for <a href="https://bugs.webkit.org/show_bug.cgi?id=20345">Bug 19065:
Error bubbles are clobbered when syntax highlighting JavaScript resources</a>.</p>
<p>To test, open the Inspector. There should be a red bubble with the number "1"
in it next to the the only script resource in the Resources panel. Clicking the
resource should show syntax highlighted JavaScript with a red error bubble.</p>