syntax_data: {"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"AliasTermKind::FreeConst"}]}
source_snippet:             AliasTermKind::FreeConst => "unevaluated constant",
context_before:             AliasTermKind::FreeTy => "type alias",
context_after:             AliasTermKind::UnevaluatedConst => "unevaluated constant",