* Fix URLs not printing line numbers unless column number is > 0.
* Change "CONSOLEAPI" to "CONSOLE" for the source.
* Clean up how console.trace outputs and print URL, line and column for each frame.
* Print "(unknown)" for anonymous and native code call frames.

https://bugs.webkit.org/show_bug.cgi?id=126767

Reviewed by Joseph Pecoraro.

* page/Console.cpp:
(WebCore::internalAddMessage):
* page/PageConsole.cpp:
(WebCore::PageConsole::printSourceURLAndPosition):
(WebCore::PageConsole::printMessageSourceAndLevelPrefix):
* page/PageConsole.h:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@161678 268f45cc-cd09-0410-ab3c-d52691b4dbfc