syntax_data: {"ast_node_type":"other","tokens":[{"end":42,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     // opaques used by this function here.
context_before:     // FIXME(#132279): We likely want to be able to use the hidden types of
context_after:     let infcx = tcx.infer_ctxt().build(TypingMode::non_body_analysis());