{"ast_node_type":"import","tokens":[{"end":83,"kind":"keyword","start":0,"text":"//"}]}
        // the cause of the type coercion is the return type, point at it. (#25228)
        // If this `if` expr is the parent's function return expr,
        let hir_id = self.tcx.parent_hir_id(self.tcx.parent_hir_id(then_expr.hir_id));