This test exercises renaming of types used as embedded fields.

-- go.mod --
module example.com
go 1.12

-- a/a.go --
package a

type A int //@rename("A", "A2", type)

-- b/b.go --
package b

import "example.com/a"

type B struct { a.A } //@renameerr("A", "A3", errAnonField)

var _ = new(B).A //@renameerr("A", "A4", errAnonField)

-- @errAnonField --
can't rename embedded fields: rename the type directly or name the field
-- @type/a/a.go --
@@ -3 +3 @@
-type A int //@rename("A", "A2", type)
+type A2 int //@rename("A", "A2", type)
-- @type/b/b.go --
@@ -5 +5 @@
-type B struct { a.A } //@renameerr("A", "A3", errAnonField)
+type B struct { a.A2 } //@renameerr("A", "A3", errAnonField)
@@ -7 +7 @@
-var _ = new(B).A //@renameerr("A", "A4", errAnonField)
+var _ = new(B).A2 //@renameerr("A", "A4", errAnonField)