XSB Src (SVN)-old

Fixed a bug in load_dyn in handling of ?- commands in usermod.

Added new test of get_idg_info.

See previous commit for overview.

increval: Code cleanup˜.

tables: get_call/4 and improved version of get_idg_info that includes incr dyn leaves.

get_call/3 --> get_call/4

Continuing to expland IDG reflection to include dynamic leaf
nodes. These nodes dont have subgoal frames, but do have
callnodes, so I've been chaning how pointers are passed around in
several places. Eventually, I want all the SF-based IDG
traversal routines to be Callnode based, but this will take
another day or so.

Added get_call/4, which now also returns a pointer to the
callnode. get_call/3 is now defined in terms of that predicate.

Added immediate_affects_callnode_ptrlist which finds the
callnodes of all subgoals an incremental subgoal affects.

Documented various cases of table_inspection_predicates, and
commented out some code that is no longer used.

Fixed padded variables to be padded 'NULL'(_)'s.

Forgot to commit these a couple of days ago.

Added max number (10) of error messages printed for wrong length lines. 11th
gives "more..." message, and then others generate no messages.

Changed padded fields to 'NULL'(_), as MK suggested.

line numbers were not initialized by conset
added line numbers to errors and warnings where they were missing