Function rustc_ast_lowering::lifetimes_from_impl_trait_bounds

pub(crate) fn lifetimes_from_impl_trait_bounds(
    opaque_ty_id: NodeId, 
    bounds: GenericBounds<'_>, 
    lifetimes_to_include: Option<&FxHashSet<LifetimeName>>
) -> Vec<(LifetimeName, Span)>