syntax_data: {"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:             // `&mut T` and `&T` always implement `BikeshedGuaranteedNoDrop`.
context_before:         match *self_ty.skip_binder().kind() {
context_after:             ty::Ref(..) => {}