File/line-less backtraces are not handled correctly

[crishoj]

Please consider this patch:

http://gist.github.com/289973

[tmarly]

Same pb, it occurs at least when the method is called by reflection. And just in case, it should be applied also to $entry['function']

[felixge]

Just included this patch into my fork: felixge@fc531d2

[simme]

I support this path. Tried it and it works nice! :)
You should send a pull-request :)