Check if dialect can support the recently added functions

[AnastasiiaSergienko]

Situation

We have added a few new functions to the common part recently.
We need to check if some dialects could support them. The list of the new function capabilities to check:

• FN_BIT_LROTATE
• FN_BIT_RROTATE
• FN_BIT_LSHIFT
• FN_BIT_RSHIFT
• FN_FROM_POSIX_TIME
• FN_HOUR
• FN_INITCAP
• FN_AGG_EVERY
• FN_AGG_SOME
• FN_AGG_MUL_DISTINCT
• FN_PRED_IS_JSON
• FN_PRED_IS_NOT_JSON
• FN_HASHTYPE_MD5
• FN_HASHTYPE_SHA1
• FN_HASHTYPE_SHA256
• FN_HASHTYPE_SHA512
• FN_HASHTYPE_TIGER
• FN_AGG_MUL
• FN_JSON_VALUE
• FN_MIN_SCALE
• FN_AGG_LISTAGG
• FN_AGG_LISTAGG_DISTINCT
• FN_AGG_LISTAGG_SEPARATOR
• FN_AGG_LISTAGG_ON_OVERFLOW_ERROR
• FN_AGG_LISTAGG_ON_OVERFLOW_TRUNCATE
• FN_AGG_LISTAGG_ORDER_BY
• FN_AGG_COUNT_TUPLE

[jakobbraun]

Blocked until we have an integration test (#7)