pgsql: Add buffer_std flag to MarkBufferDirtyHint().

Add buffer_std flag to MarkBufferDirtyHint().

MarkBufferDirtyHint() writes WAL, and should know if it's got a
standard buffer or not. Currently, the only callers where buffer_std
is false are related to the FSM.

In passing, rename XLOG_HINT to XLOG_FPI, which is more descriptive.

Back-patch to 9.3.

Branch
------
REL9_3_STABLE

Details
-------
http://git.postgresql.org/pg/commitdiff/20723ce80121d99b07c93e5bb9b32b7e09d75231

Modified Files
--------------
src/backend/access/hash/hash.c | 2 +-
src/backend/access/heap/pruneheap.c | 2 +-
src/backend/access/nbtree/nbtinsert.c | 4 ++--
src/backend/access/nbtree/nbtree.c | 2 +-
src/backend/access/nbtree/nbtutils.c | 2 +-
src/backend/access/rmgrdesc/xlogdesc.c | 4 ++--
src/backend/access/transam/xlog.c | 18 +++++++++---------
src/backend/commands/sequence.c | 2 +-
src/backend/storage/buffer/bufmgr.c | 4 ++--
src/backend/storage/freespace/freespace.c | 8 ++++----
src/backend/storage/freespace/fsmpage.c | 2 +-
src/backend/utils/time/tqual.c | 2 +-
src/include/access/xlog.h | 2 +-
src/include/catalog/pg_control.h | 2 +-
src/include/storage/bufmgr.h | 2 +-
15 files changed, 29 insertions(+), 29 deletions(-)