Check alpha-sorting of includes during presubmit.

src/arm/regexp-macro-assembler-arm.cc

 // Copyright 2012 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_ARM
 
+#include "src/code-stubs.h"
 #include "src/cpu-profiler.h"
-#include "src/unicode.h"
 #include "src/log.h"
-#include "src/code-stubs.h"
-#include "src/regexp-stack.h"
 #include "src/macro-assembler.h"
 #include "src/regexp-macro-assembler.h"
+#include "src/regexp-stack.h"
+#include "src/unicode.h"
+
 #include "src/arm/regexp-macro-assembler-arm.h"
 
 namespace v8 {
 namespace internal {
 
 #ifndef V8_INTERPRETED_REGEXP
 /*
  * This assembler uses the following register assignment convention
  * - r4 : Temporarily stores the index of capture start after a matching pass
  *        for a global regexp.
@@ skipping 1242 matching lines @@
 }
 
 
 #undef __
 
 #endif  // V8_INTERPRETED_REGEXP
 
 }}  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM