current_built_in changes error reported (0912)

From: Kish Shen <ks15_at_icparc.ic.ac.uk> Date: Fri 23 Mar 2001 07:15:57 PM GMT Message-Id: <E14gX2T-0003IA-00@tempest.icparc.ic.ac.uk> · This archive was generated by hypermail 2.1.8 : Wed 16 Nov 2005 06:08:05 PM GMT GMT

[eclipse 1]: mode get_flag(++,-).
trying to redefine a built-in predicate in mode_(get_flag(++, -), eclipse)

This seems fine, but if I now check if get_flag/2 is a built-in, and then
try this incorrect mode declaration again:

[eclipse 3]: current_built_in(get_flag/2).   

[eclipse 4]: 1.
mode get_flag(++, -).

no (more) solution.
trying to redefine an existing imported procedure [eclipse 5]: 