This test checks that formatting includes generated files too
(reversing https://go.dev/cl/365295 to address issue #49555).

See https://github.com/golang/go/issues/73959.

-- flags --
-ignore_extra_diags

-- go.mod --
module example.com
go 1.21

-- a/a.go --
// Code generated by me. DO NOT EDIT.

package a; import "fmt"; func main() { fmt.Println("hello") }

//@format(out)

-- @out --
// Code generated by me. DO NOT EDIT.

package a

import "fmt"

func main() { fmt.Println("hello") }

//@format(out)
