(quicklisp:quickload :cl-base64-tests) fails - regression due to the latest performance improvement?

[avodonosov]

With the fresh quicklisp client (quicklisp:quickload :cl-base64-tests) fails, but (quicklisp:quickload :cl-base64) works.

Few days ago it worked (although with another less critical problem, which I'll report later).

The same story with :iterate - (quicklisp:quickload :iterate-tests) fails while (quicklisp:quickload :iterate) works.

What is common between these libraries is that the -tests system is defined the same .asd file as the main system
(i.g. :cl-base64-tests is defined in :cl-base64.asd).

[quicklisp]

I've changed how things work so you cannot attempt to load a system that does not have its own system file until it has been defined by loading the defining system file. Just like how ASDF works.