Fix typos and inconsistencies for v11+

Hello hackers,

Please consider fixing the following typos and inconsistencies living in
the source code starting from v11:
3.1 add_placeholders_to_child_joinrel -> remove (orphaned after 7cfdc770)
3.2 AttachIndexInfo -> IndexAttachInfo (an internal inconsistency)
3.3 BlockRecordInfo -> BlockInfoRecord (an internal inconsistency)
3.4 bount -> bound (a typo)
3.5 CopyBoth -> CopyBothResponse (an internal inconsistency)
3.6 directy -> directory (a typo)
3.7 ExecCreateSlotFromOuterPlan -> ExecCreateScanSlotFromOuterPlan (an
internal inconsistency)
3.8 es_epqTuple -> es_epqTupleSlot (an internal inconsistency)
3.9 ExecHashTableParallelInsert -> ExecParallelHashTableInsert (an
internal inconsistency)
3.10 ExecMakeFunctionResult -> ExecMakeFunctionResultSet (an internal
inconsistency)
3.11 fmgr_builtins_oid_index -> fmgr_builtin_oid_index (an internal
inconsistency)
3.12 freeScanStack -> remove (irrelevant after 2a636834, v12 only)
3.13 GetTupleTrigger -> GetTupleForTrigger (an internal inconsistency)
3.14 grow_barrier -> grow_batches_barrier (an internal inconsistency)
3.15 HAVE__BUIILTIN_CLZ -> HAVE__BUILTIN_CLZ (a typo, v12 only)
3.16 ignored_killed_tuples -> ignore_killed_tuples (a typo)
3.17 intset_tests_stats -> intset_test_stats (an internal inconsistency,
v12 only)
3.18 is_aggregate -> objtype (needed to determine error handling and
required result type) (an internal inconsistency)
3.19 iterate_json_string_values -> iterate_json_values (renamed in 1c1791e0)
3.20 $log_number -> remove (not used since introduction in ed8a7c6f)
3.21 mechinism -> mechanism (a typo)
3.22 new_node, new_node_item -> child, child_key (an internal
inconsistency, v12 only)
3.23 new_part_constaints -> new_part_constraints (a typo)
3.24 parentIndexOid -> parentIndexId (for the sake of consistency, but
this argument is still unused since 8b08f7d4)
3.25 particiant -> participant (a typo)
3.26 PathNameCreateShared -> SharedFileSetCreate (an internal inconsistency)
3.27 PathnameCreateTemporaryDir -> PathNameCreateTemporaryDir (an
inconsistent case)
3.28 pg_access_server_files -> pg_read_server_files or
pg_write_server_files (non-existing role referenced)
3.29 pg_beginmessage_reuse -> pq_beginmessage_reuse (a typo)
3.30 Form_pg_fdw & pg_fdw -> Form_pg_foreign_data_wrapper &
pg_foreign_data_wrapper (an internal inconsistency)
3.31 PG_MCV_LIST -> pg_mcv_list (an internal inconsistency, v12 only)
3.32 pg_partition_table -> pg_partitioned_table (an internal inconsistency)
3.33 pg_write -> pg_pwrite (an internal inconsistency, v12 only)
3.34 PLyObject_FromJsonb -> PLyObject_FromJsonbContainer (an internal
inconsistency)
3.35 port_win32.h -> win32_port.h (an internal inconsistency)
3.36 PruneCtxStateIdx -> PruneCxtStateIdx (an internal inconsistency)
3.37 SetErrormode -> SetErrorMode (an internal inconsistency)
3.38 SharedRecordTypemodRegistry -> SharedRecordTypmodRegistry (an
internal inconsistency)
3.39 SharedTupleStore -> SharedTuplestore (an internal inconsistency)
3.40 shm_mq_get_receive_bytes -> shm_mq_receive_bytes (an internal
inconsistency)
3.41 t_natts -> number-of-attributes (questionable) (renamed in
storage.sgml with 3e23b68d, but one reference is left)
3.42 tts_buffer -> remove (orphaned after 4da597ed, v12 only)
3.43 tts_flag -> tts_flags (an internal inconsistency, v12 only)
3.44 tts_off -> remove (orphaned after 4da597ed, v12 only)
3.45 _vaues -> _values (a typo)
3.46 wait_event_class -> wait_event_type (an internal inconsistency)
3.47 WarnNoTranactionBlock -> WarnNoTransactionBlock (a typo)
3.48 with-wal-segsize -> remove (orphaned after fc49e24f)
3.49 XLOG_SEG_SIZE -> WAL segment size (orphaned after fc49e24fa)

Two summary patches for REL_11_STABLE and master are attached.

Best regards,
Alexander