syntax_data: {"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"debug!(\"make_mirror_unadjusted:"}]}
source_snippet:                         debug!("make_mirror_unadjusted: (struct/union) user_ty={:?}", user_ty);
context_before:                         let user_ty = user_provided_types.get(expr.hir_id).copied().map(Box::new);
context_after:                         ExprKind::Adt(Box::new(AdtExpr {