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

runtime/vm/thread_barrier_test.cc

Index: runtime/vm/thread_barrier_test.cc
diff --git a/runtime/vm/thread_barrier_test.cc b/runtime/vm/thread_barrier_test.cc
index d907df112baa91ccc1cd93cb25f84386b6f53ffb..42bc53b67e1039d683a3466fd79e55a49883eae7 100644
--- a/runtime/vm/thread_barrier_test.cc
+++ b/runtime/vm/thread_barrier_test.cc
@@ -2,9 +2,9 @@
 // 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/thread_barrier.h"
 #include "platform/assert.h"
 #include "vm/random.h"
-#include "vm/thread_barrier.h"
 #include "vm/thread_pool.h"
 #include "vm/unit_test.h"
 
@@ -36,7 +36,6 @@ class FuzzTask : public ThreadPool::Task {
   Random rng_;
 };
 
-
 VM_UNIT_TEST_CASE(ThreadBarrier) {
   static const intptr_t kNumTasks = 5;
   static const intptr_t kNumRounds = 500;