pgsql: Add operator_with_argtypes grammar rule

Add operator_with_argtypes grammar rule

This makes the handling of operators similar to that of functions and
aggregates.

Rename node FuncWithArgs to ObjectWithArgs, to reflect the expanded use.

Reviewed-by: Jim Nasby <Jim(dot)Nasby(at)BlueTreble(dot)com>
Reviewed-by: Michael Paquier <michael(dot)paquier(at)gmail(dot)com>

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/550214a4efb214dfc9c2a475607deeeea69da858

Modified Files
--------------
src/backend/catalog/aclchk.c | 6 +-
src/backend/commands/functioncmds.c | 24 +++---
src/backend/nodes/copyfuncs.c | 14 +--
src/backend/nodes/equalfuncs.c | 10 +--
src/backend/parser/gram.y | 164 +++++++++++++++++++-----------------
src/include/nodes/nodes.h | 2 +-
src/include/nodes/parsenodes.h | 20 ++---
src/tools/pgindent/typedefs.list | 2 +-
8 files changed, 126 insertions(+), 116 deletions(-)