syntax_data: {"ast_node_type":"other","tokens":[{"end":84,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:             // on opaques in the defining scope, and it's easier to do so with TAIT.
context_before:             // HACK: This is still theoretically unsound. Goals can indirectly rely
context_after:             // However, if we disqualify *all* goals from being cached, perf suffers.