pgsql: Add support to GIN for =(anyarray,anyarray) operation

Log Message:
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Add support to GIN for =(anyarray,anyarray) operation

Modified Files:
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pgsql/src/backend/access/gin:
ginarrayproc.c (r1.2 -> r1.3)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/gin/ginarrayproc.c.diff?r1=1.2&r2=1.3)
pgsql/src/include/catalog:
catversion.h (r1.337 -> r1.338)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/catversion.h.diff?r1=1.337&r2=1.338)
pg_amop.h (r1.71 -> r1.72)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/pg_amop.h.diff?r1=1.71&r2=1.72)
pgsql/src/test/regress/expected:
create_index.out (r1.19 -> r1.20)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/create_index.out.diff?r1=1.19&r2=1.20)
opr_sanity.out (r1.63 -> r1.64)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/opr_sanity.out.diff?r1=1.63&r2=1.64)
pgsql/src/test/regress/sql:
create_index.sql (r1.18 -> r1.19)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/sql/create_index.sql.diff?r1=1.18&r2=1.19)