fix one bug involving [...] constructors.

added iant's bug202 (in main code)
and ken's bug203 (in init function).
bug187 remains at large.

R=ken
OCL=34293
CL=34293

src/cmd/gc/align.c

@@ -199,9 +199,12 @@ dowidth(Type *t)
 		if(t->type == T)
 			break;
 		dowidth(t->type);
-		w = sizeof_Array;
 		if(t->bound >= 0)
 			w = t->bound * t->type->width;
+		else if(t->bound == -1)
+			w = sizeof_Array;
+		else
+			fatal("dowidth %T", t);	// probably [...]T
 		break;
 
 	case TSTRUCT:

src/cmd/gc/subr.c

@@ -1061,6 +1061,8 @@ Tpretty(Fmt *fp, Type *t)
 	case TARRAY:
 		if(t->bound >= 0)
 			return fmtprint(fp, "[%d]%T", (int)t->bound, t->type);
+		if(t->bound == -100)
+			return fmtprint(fp, "[...]%T", t->type);
 		return fmtprint(fp, "[]%T", t->type);
 
 	case TINTER:

src/cmd/gc/typecheck.c

@@ -159,7 +159,8 @@ reswitch:
 		n->type = t;
 		n->left = N;
 		n->right = N;
-		checkwidth(t);
+		if(t->bound != -100)
+			checkwidth(t);
 		break;
 
 	case OTMAP:

test/fixedbugs/bug202.go

@@ -0,0 +1,16 @@
+// $G $D/$F.go && $L $F.$A && ./$A.out || echo BUG should run
+
+// 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
+func f() {
+		v := [...]string{"a", "b"};
+}
+func main() {
+	f();
+}
+
+
+ 

test/fixedbugs/bug203.go

@@ -0,0 +1,20 @@
+// $G $D/$F.go && $L $F.$A && ./$A.out
+
+// 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
+
+var s [8]string
+
+func
+init()
+{
+       s = [...]string{ "now", "is", "the", "time", "to", "fix", "this", "bug"}
+}
+
+func
+main()
+{
+}