gopy: add focused examples (named,iface,funcs)

Change-Id: I635f215149888e356621992504620e283de5b37c

_examples/empty/empty.go

@@ -0,0 +1,5 @@
+// Copyright 2015 The go-python Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package empty

_examples/funcs/funcs.go

@@ -0,0 +1,15 @@
+// Copyright 2015 The go-python Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package funcs
+
+type Func func()
+
+type S1 struct {
+	F Func
+}
+
+type S2 struct {
+	F func()
+}

_examples/iface/iface.go

@@ -0,0 +1,9 @@
+// Copyright 2015 The go-python Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package iface
+
+type Iface interface {
+	F()
+}

_examples/named/named.go

@@ -0,0 +1,14 @@
+// Copyright 2015 The go-python Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package named
+
+type Float float32
+
+func (f Float) Value() float32 { return float32(f) }
+
+type X float32
+type XX X
+type XXX XX
+type XXXX XXX