pgsql: Remove superfluous 'pgprocno' field from PGPROC

Remove superfluous 'pgprocno' field from PGPROC

It was always just the index of the PGPROC entry from the beginning of
the proc array. Introduce a macro to compute it from the pointer
instead.

Reviewed-by: Andres Freund
Discussion: https://www.postgresql.org/message-id/8171f1aa-496f-46a6-afc3-c46fe7a9b407@iki.fi

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/28f3915b73f75bd1b50ba070f56b34241fe53fd1

Modified Files
--------------
src/backend/access/transam/clog.c             |  5 +++--
src/backend/access/transam/twophase.c         | 11 +++++------
src/backend/access/transam/xlog.c             |  2 +-
src/backend/postmaster/bgwriter.c             |  2 +-
src/backend/postmaster/pgarch.c               |  2 +-
src/backend/postmaster/walsummarizer.c        |  2 +-
src/backend/storage/buffer/bufmgr.c           |  6 +++---
src/backend/storage/ipc/procarray.c           | 14 ++++++++------
src/backend/storage/lmgr/condition_variable.c | 12 ++++++------
src/backend/storage/lmgr/lwlock.c             |  6 +++---
src/backend/storage/lmgr/predicate.c          |  2 +-
src/backend/storage/lmgr/proc.c               | 14 +++++++++-----
src/include/storage/lock.h                    |  2 +-
src/include/storage/proc.h                    |  9 +++------
14 files changed, 46 insertions(+), 43 deletions(-)