syntax_data: {"ast_node_type":"other","tokens":[{"end":98,"kind":"keyword","start":0,"text":"debug!(\"make_mirror_unadjusted:"}]}
source_snippet:                                 debug!("make_mirror_unadjusted: (variant) user_ty={:?}", user_ty);
context_before:                                     user_provided_types.get(expr.hir_id).copied().map(Box::new);
context_after:                                 ExprKind::Adt(Box::new(AdtExpr {