syntax_data: {"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                 // that a type must be `ManuallyDrop` OR `Copy` (or a pointer).
context_before:                 // FIXME(unsafe_binders): For now, we have no way to express
context_after:                 if !ty.has_escaping_bound_vars() {