syntax_data: {"ast_node_type":"variable","tokens":[{"end":74,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:         if let PatKind::ExpandedConstant { def_id, .. } = arm.pattern.kind
context_before:         let arm = &thir.arms[arm];
context_after:             && !matches!(cx.tcx.def_kind(def_id), DefKind::InlineConst)