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

runtime/vm/ast_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/ast.h"
 #include "platform/assert.h"
-#include "vm/ast.h"
 #include "vm/heap.h"
 #include "vm/isolate.h"
 #include "vm/object.h"
 #include "vm/object_store.h"
 #include "vm/unit_test.h"
 
 namespace dart {
 
 TEST_CASE(Ast) {
   LocalVariable* v =
@@ skipping 40 matching lines @@
   LiteralNode* literal_node =
       new LiteralNode(TokenPosition(2), Smi::ZoneHandle(Smi::New(3)));
   ReturnNode* return_node = new ReturnNode(TokenPosition(3), literal_node);
   sequence_node->Add(return_node);
   GrowableArray<AstNode*> nodes;
   sequence_node->CollectAllNodes(&nodes);
   EXPECT_EQ(3, nodes.length());
 }
 
 }  // namespace dart