More SoC stuff

src/interfaces/ecpg/ChangeLog

src/interfaces/ecpg/Makefile

src/interfaces/ecpg/test/Makefile

src/interfaces/ecpg/test/compat_informix/test_informix2.pgc

...faces/ecpg/test/expected/compat_informix-test_informix2.c

.../ecpg/test/expected/compat_informix-test_informix2.stderr

src/interfaces/ecpg/test/expected/sql-dynalloc.c

src/interfaces/ecpg/test/expected/sql-dynalloc.stderr

src/interfaces/ecpg/test/expected/sql-dynalloc2.c

src/interfaces/ecpg/test/expected/sql-dynalloc2.stderr

src/interfaces/ecpg/test/expected/sql-dyntest.c

src/interfaces/ecpg/test/expected/sql-dyntest.stderr

src/interfaces/ecpg/test/expected/sql-dyntest.stdout

src/interfaces/ecpg/test/pg_regress.inc.sh.in

src/interfaces/ecpg/test/pg_regress.sh

src/interfaces/ecpg/test/sql/dynalloc.pgc

src/interfaces/ecpg/test/sql/dynalloc2.pgc

src/interfaces/ecpg/test/sql/dyntest.pgc