{
				Name:     "filename",
				Content:  []byte("This is a test textfile.\n"),
				Modified: time.Date(2011, 2, 2, 13, 6, 20, 0, time.UTC),
				Mode:     0666,
			},
		},
	},
	{
		// created in windows XP file manager.
		Name: "winxp.zip",
		File: []ZipTestFile{
			{
				Name:     "hello",
				Content:  []byte("world \r\n"),
				Modified: time.Date(2011, 12, 8, 10, 4, 24, 0, time.UTC),

// rewritten to use _cgo_unsafe.Pointer instead.
func (p *Package) rewriteUnsafe(t ast.Expr) ast.Expr {
	switch t := t.(type) {
	case *ast.Ident:
		// We don't see a SelectorExpr for unsafe.Pointer;
		// this is created by code in this file.
		if t.Name == "unsafe.Pointer" {
			return ast.NewIdent("_cgo_unsafe.Pointer")
		}
	case *ast.ArrayType:
		t1 := p.rewriteUnsafe(t.Elt)
		if t1 != t.Elt {
			r := *t