WIP refactor: internal function parse_into_list_of_expressions

[eitsupi]

From #984 (comment)

Needs #996

[eitsupi]

Done in neopolars

r-polars/R/utils-parse-expr.R

Lines 3 to 6 in 571b5e3

	parse_into_list_of_expressions <- function(...) {
	list2(...) |>
	lapply(\(x) as_polars_expr(x)$`_rexpr`)
	}