Enhance file management for easy debug access in hosted applications.

[rexxitall]

If you work with a hosted application the error message shows up with the temporary file name which is not the real name. for debugging purposes its more handy to get the original filename. A workaround is currently to add a comment with the original filename to every code file. You can then load the temporary copy by its temporary filename and try to find this comment.

It might be a enhancement to internally add a dictionary and the functionality to avoid this workaround. So also in a hosted environment the real filename can be obtained.