syntax_data: {"ast_node_type":"other","tokens":[{"end":57,"kind":"keyword","start":0,"text":"ConstKind::Value(v)"}]}
source_snippet:             ConstKind::Value(v) => v.visit_with(visitor),
context_before:             ConstKind::Unevaluated(uv) => uv.visit_with(visitor),
context_after:             ConstKind::Expr(e) => e.visit_with(visitor),