tests of new func arg code

R=r
DELTA=41  (41 added, 0 deleted, 0 changed)
OCL=16212
CL=16223

test/func2.go

+// $G $F.go || echo BUG: should compile
+
+// Copyright 2009 The Go 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 main
+import os "os";
+
+type t1 int;
+type t2 int;
+type t3 int;
+
+func f1(t1, t2, t3);
+func f2(t1, t2, t3 bool);
+func f3(t1, t2, x t3);
+func f4(t1, *t3);
+func (x *t1) f5(y *[]t2) (t1, *t3);
+func f6() (int, *string);
+func f7(*t2, t3);
+func f8(os int) int;
+
+func f9(os int) int {
+	return os
+}
+func f10(err os.Error) os.Error {
+	return err
+}
+func f11(t1 string) string {
+	return t1
+}

test/func3.go

+// errchk $G $F.go
+
+// Copyright 2009 The Go 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 main
+
+type t1 int;
+type t2 int;
+type t3 int;
+
+func f1(*t2, x t3);	// ERROR "named"
+func f2(t1, *t2, x t3);	// ERROR "named"
+func f3() (x int, *string);	// ERROR "named"
+
+func f4() (t1 t1);	// ERROR "type"