syntax_data: {"ast_node_type":"other","tokens":[{"end":81,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                     // A global type with no free lifetimes or generic parameters
context_before:                 ty::PredicateKind::Clause(ty::ClauseKind::TypeOutlives(pred)) => {
context_after:                     // outlives anything.