Always create an error report, even when there is no current stack frame and it might be empty. This fixes an API regression; we used to allow JS_ReportError to be called from the API when no JavaScript was running.
r=rogerl
a=beard
git-svn-id: svn://10.0.0.236/trunk@76034 18797224-902f-48f8-a5cc-f745e15eee43