syntax_data: {"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"//"}]}
source_snippet: // of trivial impls of `TypeFoldable` for specific slice types elsewhere.
context_before: // case, because we can't return a new slice. But note that there are a couple
context_after: impl<I: Interner, T: TypeVisitable<I>> TypeVisitable<I> for &[T] {