syntax_data: {"ast_node_type":"other","tokens":[{"end":101,"kind":"keyword","start":0,"text":"|"}]}
source_snippet:             | ty::Infer(ty::TyVar(_) | ty::FreshTy(_) | ty::FreshIntTy(_) | ty::FreshFloatTy(_)) => {
context_before:             | ty::Bound(..)
context_after:                 bug!("asked to assemble constituent types of unexpected type: {:?}", t);