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

runtime/vm/bit_vector_test.cc

 // Copyright (c) 2012, 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/bit_vector.h"
 #include "platform/assert.h"
-#include "vm/bit_vector.h"
 #include "vm/unit_test.h"
 
 namespace dart {
 
 #define Z (thread->zone())
 
 TEST_CASE(BitVector) {
   {
     BitVector* v = new BitVector(Z, 15);
     v->Add(1);
@@ skipping 104 matching lines @@
     a->Add(0);
     a->Add(64);
     b->RemoveAll(a);
     EXPECT_EQ(false, b->Contains(0));
     EXPECT_EQ(true, b->Contains(32));
     EXPECT_EQ(false, b->Contains(64));
   }
 }
 
 }  // namespace dart