syntax_data: {"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:                 if !ty.has_escaping_bound_vars() {
context_before:                 // that a type must be `ManuallyDrop` OR `Copy` (or a pointer).
context_after:                     self.out.push(traits::Obligation::new(