ArrayLists instead of List (for some things)

failed: regress/adminpack, regress/commit_timestamp, regress/tablespace, regress/boolean, regress/char, regress/name, regress/varchar, regress/text, regress/int2, regress/int4, regress/int8, regress/oid, regress/float4, regress/float8, regress/bit, regress/numeric, regress/txid, regress/uuid, regress/enum, regress/money, regress/rangetypes, regress/pg_lsn, regress/regproc, regress/strings, regress/numerology, regress/point, regress/lseg, regress/line, regress/box, regress/path, regress/polygon, regress/circle, regress/date, regress/time, regress/timetz, regress/timestamp, regress/timestamptz, regress/interval, regress/abstime, regress/reltime, regress/tinterval, regress/inet, regress/macaddr, regress/macaddr8, regress/tstypes, regress/geometry, regress/horology, regress/regex, regress/oidjoins, regress/type_sanity, regress/opr_sanity, regress/misc_sanity, regress/comments, regress/expressions, regress/insert, regress/insert_conflict, regress/create_type, regress/create_table, regress/copy, regress/copyselect, regress/copydml, regress/create_misc, regress/create_index, tap/001_basic, tap/002_databases, tap/004_pg_xlog_symlink, regress/create_aggregate, regress/create_function_3, regress/create_cast, regress/constraints, regress/triggers, regress/inherit, regress/create_table_like, regress/typed_table, regress/vacuum, regress/updatable_views, regress/rolenames, regress/roleattributes, regress/create_am, regress/hash_func, regress/sanity_check, pg_rewind/001_basic, pg_rewind/002_databases, pg_rewind/004_pg_xlog_symlink