{"ast_node_type":"variable","tokens":[{"end":73,"kind":"keyword","start":0,"text":"let"}]}
                let pointee_size = fx.layout_of(pointee_ty).size.bytes();
                let (base, offset) = (in_lhs, in_rhs.load_scalar(fx));
                let ptr_diff = fx.bcx.ins().imul_imm(offset, pointee_size as i64);