Read in a .class file and parse and register the class for use by Axe.
(read-class class-file &key :dir ; default nil )
A path to a .class file, relative to the directory indicated by the
dir argument.
Either
nil , in which case theclass-file is interpreted relative to the cbd, or a keyword indicating a directory registered with add-include-book-dir or add-include-book-dir!.