VM: Re-format to use at most one newline between functions

runtime/vm/ring_buffer_test.cc

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+#include "vm/ring_buffer.h"
 #include "platform/assert.h"
-#include "vm/ring_buffer.h"
 #include "vm/unit_test.h"
 
 namespace dart {
 
 TEST_CASE(RingBuffer) {
   RingBuffer<int, 2> buf;
   EXPECT_EQ(0, buf.Size());
   buf.Add(42);
   EXPECT_EQ(1, buf.Size());
   EXPECT_EQ(42, buf.Get(0));
   buf.Add(87);
   EXPECT_EQ(2, buf.Size());
   EXPECT_EQ(87, buf.Get(0));
   EXPECT_EQ(42, buf.Get(1));
   buf.Add(-1);
   EXPECT_EQ(2, buf.Size());
   EXPECT_EQ(-1, buf.Get(0));
   EXPECT_EQ(87, buf.Get(1));
 }
 
 }  // namespace dart