ScriptExecutionContext has logExceptionToConsole which may send error ConsoleMessages to the inspector. In order to jump to the proper place in source code the inspector needs both the line number and column number. Examples would be JavaScript runtime exceptions.
<rdar://problem/13614420>
This should also cover ScriptExecutionContext::reportException.
<rdar://problem/13614454>
Created attachment 199610 [details] [PATCH] Proposed Fix Likely requires a patch on another bug and needs to be rebased in order to build. I'll work on making that happen so the bots can build as expected. The change however would remain essentially the same.
Landed r149131: <http://trac.webkit.org/changeset/149131>