syntax_data: {"ast_node_type":"other","tokens":[{"end":57,"kind":"keyword","start":0,"text":"|"}]}
source_snippet:                 | ty::AliasTermKind::ProjectionConst => {
context_before:                 | ty::AliasTermKind::UnevaluatedConst
context_after:                     relate_args_invariantly(relation, a.args, b.args)?