What version of Go are you using (go version)?

go version go1.9 linux/amd64

Does this issue reproduce with the latest release?

yes

What operating system and processor architecture are you using (go env)?

ubuntu 16.04 amd64

What did you do?

If you have a function with the same name as a package, goimports won't add that import

package main

func exec() {
}

func os() {
}

func main() {
	if len(os.Args) != 2 {
	}
	cmd := exec.Command("a")
}

What did you expect to see?

the "os" and "os/exec" packages added as imports

What did you see instead?

the "os" and "os/exec" packages not added as imports