type -> designator
type -> designator

Clarification based on comment

chriskrycho/rust-by-example,jinyuanxie/rust-by-example-cn,aakloxu/rust-by-example-cn,mdinger/rust-by-example,mdinger/rust-by-example,rust-lang-cn/rust-by-example-cn,realcr/rust-by-example,chriskrycho/rust-by-example,rust-lang-cn/rust-by-example-cn,aakloxu/rust-by-example-cn,jinyuanxie/rust-by-example-cn,realcr/rust-by-example