syntax_data: {"ast_node_type":"other","tokens":[{"end":39,"kind":"keyword","start":0,"text":"impl<'tcx>"}]}
source_snippet: impl<'tcx> ExistentialPredicate<'tcx> {
context_before: #[extension(pub trait ExistentialPredicateStableCmpExt<'tcx>)]
context_after:     /// Compares via an ordering that will not change if modules are reordered or other changes are