pgsql: Fix rwrite(ARRAY) on 64-bit boxes: Instead of getting elements

Log Message:
-----------
Fix rwrite(ARRAY) on 64-bit boxes:

Instead of getting elements of array manually call deconstruct_array

Modified Files:
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    pgsql/contrib/tsearch2:
        query_rewrite.c (r1.1 -> r1.2)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/query_rewrite.c.diff?r1=1.1&r2=1.2)
        tsearch.sql.in (r1.12 -> r1.13)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/tsearch.sql.in.diff?r1=1.12&r2=1.13)
    pgsql/contrib/tsearch2/expected:
        tsearch2.out (r1.14 -> r1.15)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/expected/tsearch2.out.diff?r1=1.14&r2=1.15)