syntax_data: {"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// walking the "supertraits" and other similar assumptions. For example,
context_before: /// are implied by a source predicate. Currently, this basically means
context_after: /// if we know that `T: Ord`, the elaborator would deduce that `T: PartialOrd`