[cvs-nhc98] Hat: add error-case hooks in archive file.

[Malcolm Wallace]

malcolm: Mon Mar 12 17:17:58 CET 2001

Update of /usr/src/master/nhc/src/tracer/runtime
In directory hinken:/tmp/cvs-serv6436

Modified Files:
	browsercomms.c io.c 
Log Message:
Hat: add error-case hooks in archive file.
  When terminating the program with an error, plant an error message
  and expression-root at the beginning of the archive file.  This applies
  to pattern-match failures and black-holes at the moment.  Interrupts
  are still to come.