syntax_data: {"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":"}"}]}
source_snippet:         } else if self.typeck_results.expr_ty(source).is_ref() {
context_before:             ExprKind::Use { source: self.mirror_expr(source) }
context_after:             // Special cased so that we can type check that the element