if dir != "" {
		if err := sh.Mkdir(dir); err != nil {
			return err
		}
	}

	gofiles := str.StringList(p.GoFiles)
	cgofiles := str.StringList(p.CgoFiles)
	cfiles := str.StringList(p.CFiles)
	sfiles := str.StringList(p.SFiles)
	cxxfiles := str.StringList(p.CXXFiles)
	var objects, cgoObjects, pcCFLAGS, pcLDFLAGS []string

	if p.UsesCgo() || p.UsesSwig() {

// even IgnoredGoFiles, because some subcommands consider them.
// The go/build package filtered others out (like foo_wrongGOARCH.s)
// and that's OK.
func (p *Package) AllFiles() []string {
	files := str.StringList(
		p.GoFiles,
		p.CgoFiles,
		// no p.CompiledGoFiles, because they are from GoFiles or generated by us
		p.IgnoredGoFiles,
		// no p.InvalidGoFiles, because they are from GoFiles
		p.IgnoredOtherFiles,

			t.Errorf("%d: %s exported=%v, want %v", i, typ.Name(), got, test.want)
		}
	}
}

func TestTypeStrings(t *testing.T) {
	type stringTest struct {
		typ  Type
		want string
	}
	stringTests := []stringTest{
		{TypeOf(func(int) {}), "func(int)"},
		{FuncOf([]Type{TypeOf(int(0))}, nil, false), "func(int)"},
		{TypeOf(XM{}), "reflect_test.XM"},