Web Inspector: Expand Console domain test coverage

Web Inspector: Expand Console domain test coverage
https://bugs.webkit.org/show_bug.cgi?id=148740

Patch by Joseph Pecoraro <pecoraro@apple.com> on 2015-09-04
Reviewed by Brian Burg.

Source/JavaScriptCore:

* inspector/protocol/Console.json:
Update the description of this command now that it only
manipulates $0, and not $1, $2, .. $n.

Source/WebInspectorUI:

* UserInterface/Protocol/RemoteObject.js:
Add a few helpers for checking the RemoteObject type.

LayoutTests:

Test more Console domain commands and events.

* inspector/console/addInspectedNode-expected.txt: Added.
* inspector/console/addInspectedNode.html: Added.
* inspector/console/clearMessages-expected.txt: Added.
* inspector/console/clearMessages.html: Added.
* inspector/console/messageRepeatCountUpdated-expected.txt: Added.
* inspector/console/messageRepeatCountUpdated.html: Added.
* inspector/console/messagesCleared-expected.txt: Added.
* inspector/console/messagesCleared.html: Added.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@189373 268f45cc-cd09-0410-ab3c-d52691b4dbfc