syntax_data: {"ast_node_type":"other","tokens":[{"end":100,"kind":"keyword","start":0,"text":"//"}]}
source_snippet: // returns a specific instantiation (e.g., with Vacant slots when bounds aren't satisfied). The goal
context_before: // supertrait) definitions. That means we can't call into the same vtable_entries code since that
context_after: // here is to do a best-effort approximation without duplicating a lot of code.