syntax_data: {"ast_node_type":"other","tokens":[{"end":35,"kind":"keyword","start":0,"text":"UniverseIndex::ROOT"}]}
source_snippet:                 UniverseIndex::ROOT
context_before:             CanonicalVarKind::Ty(CanonicalTyVarKind::Float | CanonicalTyVarKind::Int) => {
context_after:             }