currently the ARG_MIN/ARG_MAX syntax added in #10636 isn't actually the latest supported operand type checker format in Calcite.

Namely, ARG_MIN/ARG_MAX(comp[, comp]*, value) puts the mandatory value column at the end and the optional comparison in the middle. and incompatible with Calcite's syntax ARG_MIN/ARG_MAX(value, comp)

we propose to

1. use a new syntax EXPR_MIN(value, comp[, comp]*) which is inline with ARG_MIN/ARG_MAX(value, comp) when no optional secondary comp columns are attached
2. migrate ARG_MIN/ARG_MAX to the new syntax and
3. [optional] if Calcite adopts the optional comp column we can further use ARG_MIN/ARG_MAX as synonym of EXPR_MIN/EXPR_MAX in the future.

CC @jasperjiaguo @Jackie-Jiang @xiangfu0