a new TextPrompt object. This TextPrompt object will be used later
other parts of the Inspector that need text completion and history.
Not functionality changed, just moved code around.

Reviewed by Adam Roben.

* WebCore.vcproj/WebCore.vcproj: Add TextPrompt.js.
* page/inspector/Console.js: Call the new prompt object and
  delete all the code that moved.
* page/inspector/TextPrompt.js: Added. Moved code from Console.js.
* page/inspector/WebKit.qrc: Add TextPrompt.js.
* page/inspector/inspector.html: Add TextPrompt.js.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@31645 268f45cc-cd09-0410-ab3c-d52691b4dbfc