pub const SET_METHODS: &[&str];Expand description
The built-in Set[E] methods this codegen lowers natively per target.
Mirrors the checker’s Set method resolution (checker.rs): add/remove/
union/intersection/difference/filter/map return the (receiver) set;
contains/is_subset/is_superset/is_empty a Bool; len/length/
count an Int; to_list a List; for_each Void. contains here is
the set-membership test — distinct from List.contains, disambiguated by
the recv_kind = "Set" annotation.