syntax_data: {"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"ConstKind::Value(v)"}]}
source_snippet:             ConstKind::Value(v) => ConstKind::Value(v.try_fold_with(folder)?),
context_before:             ConstKind::Unevaluated(uv) => ConstKind::Unevaluated(uv.try_fold_with(folder)?),
context_after:             ConstKind::Expr(e) => ConstKind::Expr(e.try_fold_with(folder)?),