Refix conditional step clauses in cl-loop

* lisp/emacs-lisp/cl-macs.el
(cl--loop-bindings, cl--loop-symbol-macs, cl-loop):
Add cl--loop-conditions, remove cl--loop-guard-cond.
(cl--push-clause-loop-body): Apply clause to both cl--loop-conditions
and cl--loop-body
(cl--parse-loop-clause): Use cl--push-clause-loop-body.
* test/lisp/emacs-lisp/cl-macs-tests.el (cl-macs-loop-and-assignment):
Use docstring.
(cl-macs-loop-for-as-arith): Removed expected failure.
(cl-macs-loop-conditional-step-clauses): Add some tests (bug#29799).
1 job for master in 62 minutes and 21 seconds (queued for 3 seconds)
Status Job ID Name Coverage
failed #4321


Name Stage Failure
test-all Test
make[2]: *** [check-doit] Error 1
Makefile:319: recipe for target 'check-doit' failed
make[2]: Leaving directory '/builds/emacs/emacs/test'
Makefile:294: recipe for target 'check-expensive' failed
make[1]: *** [check-expensive] Error 2
make[1]: Leaving directory '/builds/emacs/emacs/test'
make: *** [check-expensive] Error 2
Makefile:959: recipe for target 'check-expensive' failed
ERROR: Job failed: exit code 1