Tests that Web Inspector won't crash if some console have been logged by the time it's opening.

console-log-before-inspector-open.js:15 log
console-log-before-inspector-open.js:16 info
console-log-before-inspector-open.js:17 warn
(anonymous) @ console-log-before-inspector-open.js:17
console-log-before-inspector-open.js:18 error
(anonymous) @ console-log-before-inspector-open.js:18