After merging @agureev 's work we have the following documentation generation warnings
WARNING: redefining PERFORM (#<STANDARD-CLASS ASDF/LISP-ACTION:TEST-OP> #<SB-MOP:EQL-SPECIALIZER #<SYSTEM "geb/test">>) in DEFMETHOD
WARNING: "[NAT][]" cannot be resolved.
(while documenting #<MGL-PAX:REFERENCE NAT-ADD CLASS>)
WARNING: "[NAT][]" cannot be resolved.
(while documenting #<MGL-PAX:REFERENCE NAT-MULT CLASS>)
WARNING: "[NAT][]" cannot be resolved.
(while documenting #<MGL-PAX:REFERENCE NAT-SUB CLASS>)
WARNING: "[NAT][]" cannot be resolved.
(while documenting #<MGL-PAX:REFERENCE NAT-DIV CLASS>)
WARNING: "[NAT][]" cannot be resolved.
(while documenting #<MGL-PAX:REFERENCE NAT-INJ CLASS>)
WARNING: "[NAT][]" cannot be resolved.
(while documenting #<MGL-PAX:REFERENCE NAT-INJ CLASS>)
WARNING: "[NAT][]" cannot be resolved.
(while documenting #<MGL-PAX:REFERENCE NAT-INJ CLASS>)
WARNING: redefining PERFORM (#<STANDARD-CLASS ASDF/LISP-ACTION:TEST-OP> #<SB-MOP:EQL-SPECIALIZER #<SYSTEM "geb/test">>) in DEFMETHOD
WARNING: redefining PERFORM (#<STANDARD-CLASS ASDF/LISP-ACTION:TEST-OP> #<SB-MOP:EQL-SPECIALIZER #<SYSTEM "geb/test">>) in DEFMETHOD
WARNING: redefining PERFORM (#<STANDARD-CLASS ASDF/LISP-ACTION:TEST-OP> #<SB-MOP:EQL-SPECIALIZER #<SYSTEM "geb/test">>) in DEFMETHOD
WARNING: redefining PERFORM (#<STANDARD-CLASS ASDF/LISP-ACTION:TEST-OP> #<SB-MOP:EQL-SPECIALIZER #<SYSTEM "geb/test">>) in DEFMETHOD
WARNING: redefining PERFORM (#<STANDARD-CLASS ASDF/LISP-ACTION:TEST-OP> #<SB-MOP:EQL-SPECIALIZER #<SYSTEM "geb/test">>) in DEFMETHOD
WARNING:
No source location found for reference
#<REFERENCE SO-HOM-OBJ GENERIC-FUNCTION>:
Could not find source location for ((DEFGENERIC SO-HOM-OBJ)).
WARNING:
No source location found for reference #<REFERENCE NUM GENERIC-FUNCTION>:
Could not find source location for ((DEFGENERIC NUM)).
WARNING:
No source location found for reference #<REFERENCE POS GENERIC-FUNCTION>:
Could not find source location for ((DEFGENERIC POS)).
WARNING:
No source location found for reference
#<REFERENCE NUM-LEFT GENERIC-FUNCTION>:
Could not find source location for ((DEFGENERIC NUM-LEFT)).
WARNING:
No source location found for reference
#<REFERENCE NUM-RIGHT GENERIC-FUNCTION>:
Could not find source location for ((DEFGENERIC NUM-RIGHT)).
WARNING:
No source location found for reference #<REFERENCE WIDTH GENERIC-FUNCTION>:
Could not find source location for ((DEFGENERIC WIDTH)).
WARNING:
No source location found for reference #<REFERENCE COD GENERIC-FUNCTION>:
Could not find source location for ((DEFGENERIC COD)).
WARNING:
No source location found for reference
#<REFERENCE SO-HOM-OBJ GENERIC-FUNCTION>:
Could not find source location for ((DEFGENERIC SO-HOM-OBJ)).
WARNING: "[NAT][]" cannot be resolved.
(while documenting #<MGL-PAX:REFERENCE NAT-ADD CLASS>)
WARNING: "[NAT][]" cannot be resolved.
(while documenting #<MGL-PAX:REFERENCE NAT-MULT CLASS>)
WARNING: "[NAT][]" cannot be resolved.
(while documenting #<MGL-PAX:REFERENCE NAT-SUB CLASS>)
WARNING: "[NAT][]" cannot be resolved.
(while documenting #<MGL-PAX:REFERENCE NAT-DIV CLASS>)
WARNING: "[NAT][]" cannot be resolved.
(while documenting #<MGL-PAX:REFERENCE NAT-INJ CLASS>)
WARNING: "[NAT][]" cannot be resolved.
(while documenting #<MGL-PAX:REFERENCE NAT-INJ CLASS>)
WARNING: "[NAT][]" cannot be resolved.
(while documenting #<MGL-PAX:REFERENCE NAT-INJ CLASS>)
WARNING:
No source location found for reference #<REFERENCE NUM GENERIC-FUNCTION>:
Could not find source location for ((DEFGENERIC NUM)).
WARNING:
No source location found for reference #<REFERENCE POS GENERIC-FUNCTION>:
Could not find source location for ((DEFGENERIC POS)).
WARNING:
No source location found for reference
#<REFERENCE NUM-LEFT GENERIC-FUNCTION>:
Could not find source location for ((DEFGENERIC NUM-LEFT)).
WARNING:
No source location found for reference
#<REFERENCE NUM-RIGHT GENERIC-FUNCTION>:
Could not find source location for ((DEFGENERIC NUM-RIGHT)).
WARNING:
No source location found for reference #<REFERENCE WIDTH GENERIC-FUNCTION>:
Could not find source location for ((DEFGENERIC WIDTH)).
WARNING:
No source location found for reference #<REFERENCE COD GENERIC-FUNCTION>:
Could not find source location for ((DEFGENERIC COD)).
After merging @agureev 's work we have the following documentation generation warnings
would be good to fix them all up