syntax_data: {"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // - The supertrait-ref is `for<'b> Bar1<'a,'b>`, where `'a` is an
context_before:         //   `'a => 'x` (where `'x` has a DB index of 1).
context_after:         //   early-bound parameter and `'b` is a late-bound parameter with a