gccgo: aliases of *T should be embeddable if T is a defined type which is neither pointer nor interface

[zigo101]

I create this issue per @ianlancetaylor's suggestion.

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

$ gccgo --version
gccgo (Debian 8.3.0-6) 8.3.0

Does this issue reproduce with the latest release?

yes.

What did you do?

package main

type P1 = *bool
type P2 = *struct{}

type T struct {
	P1
	P2
}

func main() {}

What did you expect to see?

Compiles okay.

What did you see instead?

Doesn't compile.

[dsnet]

\cc @cherrymui This sounds awfully similar to the other type alias bug I encountered recently.

[dmitshur]

Also /cc @ianlancetaylor from the originating issue.