syntax_data: {"ast_node_type":"other","tokens":[{"end":39,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     // types defined during HIR typeck.
context_before:     // FIXME(#132279): This should be able to reveal opaque
context_after:     let infcx = tcx.infer_ctxt().build(TypingMode::non_body_analysis());