syntax_data: {"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"ty::Adt(def,"}]}
source_snippet:         ty::Adt(def, _) => Some(SimplifiedType::Adt(def.def_id())),
context_before:         ty::Float(float_type) => Some(SimplifiedType::Float(float_type)),
context_after:         ty::Str => Some(SimplifiedType::Str),