fix build: added missing files

TBR=rsc
DELTA=56  (56 added, 0 deleted, 0 changed)
OCL=34652
CL=34652

src/pkg/go/printer/testdata/declarations.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 imports
+
+import "io"
+
+import (
+	a "io"
+)
+
+import a "io"
+
+import (
+	"io";
+	"io";
+	"io";
+)
+
+import (
+	"io";
+	aLongRename "io";
+	b "io";
+	c "i" "o";
+)
+
+// TODO(gri) add more test cases

src/pkg/go/printer/testdata/declarations.golden

+// 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 imports
+
+import "io"
+
+import (
+	a "io";
+)
+
+import a "io"
+
+import (
+	"io";
+	"io";
+	"io";
+)
+
+import (
+				"io";
+	aLongRename	"io";
+	b			"io";
+	c			"i" "o";
+)
+
+// TODO(gri) add more test cases