[CF 5665] v2 - Split varlena.c into varlena.c and bytea.c

This branch was automatically generated by a robot using patches from an
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https://commitfest.postgresql.org/patch/5665

The branch will be overwritten each time a new patch version is posted to
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Patch(es): https://www.postgresql.org/message-id/CAJ7c6TO-puD6jADzMnn2irnpoMK5WAB+PEP5GK=CXvjFRRpRjQ@mail.gmail.com
Author(s): Aleksander Alekseev

Author: Commitfest Bot

src/backend/utils/adt/Makefile

@@ -23,6 +23,7 @@ OBJS = \
 	arrayutils.o \
 	ascii.o \
 	bool.o \
+	bytea.o \
 	cash.o \
 	char.o \
 	cryptohashfuncs.o \