syntax_data: {"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"|"}]}
source_snippet:             | ty::Infer(FreshTy(_) | ty::FreshIntTy(_) | ty::FreshFloatTy(_)) => {
context_before:             | ty::Placeholder(_)
context_after:                 bug!("`discriminant_ty` applied to unexpected type: {:?}", self)