reject new of function type

R=ken
OCL=17598
CL=17598

src/cmd/gc/walk.c

@@ -1824,6 +1824,10 @@ newcompat(Node *n)
 
 	t = t->type;
 	switch(t->etype) {
+	case TFUNC:
+		yyerror("cannot make new %T", t);
+		break;
+
 	case TMAP:
 		r = mapop(n, Erv);
 		return r;

test/newfn.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.
+
+// errchk $G $D/$F.go
+
+package main
+
+func main()
+{
+	f := new(());	// ERROR "new"
+	g := new((x int, f float) string);	// ERROR "new"
+	h := new(*());	// ok
+}