[yuyi98]

This PR check struct aliased field unsign type assigning negative value (fix #22868).

• Check struct aliased field unsign type assigning negative value.
• Add test.

type Port = u16

struct App {
	port Port
}

fn main() {
	app := App{
		port: -1
	}
	println(app)
}

PS D:\Test\v\tt1> v run .
tt1.v:9:9: error: cannot assign negative value to unsigned integer type
    7 | fn main() {
    8 |     app := App{
    9 |         port: -1
      |               ~~
   10 |     }
   11 |     println(app)

_{Huly®: V_0.6-21314}

[spytheman]

Excellent work.