syntax_data: {"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"|"}]}
source_snippet:             | (ty::ImplSubject::Inherent(_), ty::ImplSubject::Trait(_)) => {
context_before:             (ty::ImplSubject::Trait(_), ty::ImplSubject::Inherent(_))
context_after:                 bug!("can not relate TraitRef and Ty");