0.8.12.21: The same finnish twit who broke the manual also left

0.8.12.21: The same finnish twit who broke the manual also left
           unaccounted several pathological cases in his COMPILER-ERROR
           reorganization.
            * Revert to a less fancy, but more robust scheme, one that
                never requires MAKE-LOAD-FORM for dumping
                COMPILED-PROGRAM-ERRORS. The informational benefits
                of the earlier patch are unaffected.
            * Tests for at least some of those pathological cases in case
                someone comes up with the same brilliant idea.