(core) update persdb

Src-commit: e90c6d43e89205335844f5dad9c262258a33a22f

Author: jfmc

core/library/persdb/persdb.pl

@@ -1,7 +1,8 @@
 :- package(persdb).
 
-% TODO: must be asserted before 'datafacts' to preserve semantics with
-%   'latest import priority'; but this seems to hide those defs, isn't it?
+:- use_package(datafacts). % TODO: refine?
+:- use_package(library(persdb/persdb_decl)).
+
 :- use_module(library(persdb/persdb_rt), [%redefinebuiltins
     asserta_fact/1, 
     assertz_fact/1, 
@@ -13,9 +14,6 @@
     update_files/0,
     update_files/1]).
 
-:- use_package(datafacts). % TODO: refine?
-:- use_package(library(persdb/persdb_decl)).
-
 :- redefining(asserta_fact/1).
 :- redefining(assertz_fact/1).
 :- redefining(retract_fact/1).