File psl-1983/20-kernel/error.init from the latest check-in

(FLUID (QUOTE (!*CONTINUABLEERROR ERRORFORM!* BREAKLEVEL!* MAXBREAKLEVEL!* 
!*EMSGP)))
(GLOBAL (QUOTE (EMSG!*)))
(GLOBAL (QUOTE (EMSG!*)))
(FLUID (QUOTE (!*BACKTRACE !*INNER!*BACKTRACE !*EMSGP !*BREAK BREAKLEVEL!* 
MAXBREAKLEVEL!* !*CONTINUABLEERROR)))
(PUT (QUOTE ERRSET) (QUOTE TYPE) (QUOTE MACRO))