Check alpha-sorting of includes during presubmit.

src/x64/lithium-gap-resolver-x64.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_X64
 
+#include "src/x64/lithium-codegen-x64.h"
 #include "src/x64/lithium-gap-resolver-x64.h"
-#include "src/x64/lithium-codegen-x64.h"
 
 namespace v8 {
 namespace internal {
 
 LGapResolver::LGapResolver(LCodeGen* owner)
     : cgen_(owner), moves_(32, owner->zone()) {}
 
 
 void LGapResolver::Resolve(LParallelMove* parallel_move) {
   ASSERT(moves_.is_empty());
@@ skipping 289 matching lines @@
       moves_[i].set_source(source);
     }
   }
 }
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64