pgsql: Rename nbtree tuple macros.

Rename nbtree tuple macros.

Rename two function-style macros, removing the word "inner". This makes
things more consistent.

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/fcf3b6917bd8f6f9f463e3e42e53d6ff9612e327

Modified Files
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contrib/amcheck/verify_nbtree.c | 10 +++++-----
src/backend/access/nbtree/nbtinsert.c | 10 +++++-----
src/backend/access/nbtree/nbtpage.c | 10 +++++-----
src/backend/access/nbtree/nbtsearch.c | 4 ++--
src/backend/access/nbtree/nbtsort.c | 4 ++--
src/backend/access/nbtree/nbtxlog.c | 4 ++--
src/include/access/nbtree.h | 6 +++---
7 files changed, 24 insertions(+), 24 deletions(-)