Bug report: Wrong file type returned by COMPILE-FILE-PATHNAME

[Robert Munyer]

The code below returns
  "lx64fsl" in CCL,
  "fas"     in CLISP, and
  "fasl"    in SBCL,
but returns
  "lisp"    in ABCL.

I think it should return
  "abcl"    in ABCL.

$ java -jar abcl-1.7.1.jar
Armed Bear Common Lisp 1.7.1
Java 1.8.0_272 Oracle Corporation
OpenJDK 64-Bit Server VM
Low-level initialization completed in 0.586 seconds.
Startup completed in 1.336 seconds.
Type ":help" for a list of available commands.
CL-USER(1): (pathname-type
              (compile-file-pathname
                (make-pathname :name "foo" :type "lisp")
                :output-file (make-pathname :name "bar")))
"lisp"
CL-USER(2):