formatting.c cleanup: Rename DCH_S_* to DCH_SUFFIX_*

Peter Eisentraut <peter@eisentraut.org>

Commit: da2052ab9a256277391a361715abb66c9b7956c4
Author: Peter Eisentraut <peter@eisentraut.org>
Date: 2025-10-31T07:06:46Z
formatting.c cleanup: Rename DCH_S_* to DCH_SUFFIX_*

For clarity.  Also rename several related macros and turn them into
inline functions.

Reviewed-by: Chao Li <li.evan.chao@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/6dd9d208-a3ed-49b5-b03d-8617261da973%40eisentraut.org

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PathChange+/−
src/backend/utils/adt/formatting.c modified +131 −108

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