syntax_data: {"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                 // `&str` is represented as a valtree, let's keep using this
context_before:             ty::Ref(_, pointee_ty, ..) => match *pointee_ty.kind() {
context_after:                 // optimization for now.