syntax_data: {"ast_node_type":"other","tokens":[{"end":58,"kind":"keyword","start":0,"text":"closure_env_projs.push(ProjectionElem::Deref);"}]}
source_snippet:             closure_env_projs.push(ProjectionElem::Deref);
context_before:         if let ty::Ref(_, ty, _) = closure_ty.kind() {
context_after:             closure_ty = *ty;