syntax_data: {"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // we'll render this something like `<Ty as Trait>::method::inner_fn`
context_before:         // function inside of a method. Due to the way that def path printing works,
context_after:         // but we have no substs for this impl since it's not really inheriting