pgsql: Add parse location fields to NullTest and BooleanTest structs.

Add parse location fields to NullTest and BooleanTest structs.

We did not need a location tag on NullTest or BooleanTest before, because
no error messages referred directly to their locations.  That's planned
to change though, so add these fields in a separate housekeeping commit.

Catversion bump because stored rules may change.

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/c063da1769229efa8d8d21f0d068b3199ea3a6b3

Modified Files
--------------
src/backend/nodes/copyfuncs.c         |    2 ++
src/backend/nodes/equalfuncs.c        |    2 ++
src/backend/nodes/nodeFuncs.c         |   18 ++++++++++++++----
src/backend/nodes/outfuncs.c          |    2 ++
src/backend/nodes/readfuncs.c         |    2 ++
src/backend/optimizer/plan/planagg.c  |    1 +
src/backend/optimizer/prep/prepqual.c |    2 ++
src/backend/optimizer/util/clauses.c  |    3 +++
src/backend/optimizer/util/plancat.c  |    1 +
src/backend/parser/gram.y             |   10 ++++++++++
src/backend/parser/parse_expr.c       |    1 +
src/backend/rewrite/rewriteManip.c    |    1 +
src/include/catalog/catversion.h      |    2 +-
src/include/nodes/primnodes.h         |    2 ++
14 files changed, 44 insertions(+), 5 deletions(-)