pub(super) fn trait_namespace_symbol(
class_system: ClassSystem,
type_ident: &Ident,
trait_name: &Ident,
member: &str,
) -> StringExpand description
trait_namespace_target in R code position (the left of <-, the
argument of attr()). A non-syntactic member (an operator r_name, #1475)
is backtick-quoted: Type$Trait$[[, or Type_Trait_[[ `` for S4.
Roxygen @name keeps the bare trait_namespace_target spelling.