syntax_data: {"ast_node_type":"other","tokens":[{"end":58,"kind":"keyword","start":0,"text":"impl<I:"}]}
source_snippet: impl<I: Interner> ty::Binder<I, ExistentialPredicate<I>> {
context_after:     /// Given an existential predicate like `?Self: PartialEq<u32>` (e.g., derived from `dyn PartialEq<u32>`),