you can always do the "more flash:filename" to view the file and see what it contains. However of the the things you mentioned above all of them but coredumpinfo/coredump.cfg are actually directories and not actually files that contain any information. And the coredump.cfg has nothing that would contain sensitive information and is just a file that is there by default on a certain firmware version or higher for the ASA.
Thanks for the 100% correct response. I never knew of the more command. Its pretty cool.
The URL below gives which files and directories are default on the ASA.