Check alpha-sorting of includes during presubmit.

src/mips/disasm-mips.cc

Index: src/mips/disasm-mips.cc
diff --git a/src/mips/disasm-mips.cc b/src/mips/disasm-mips.cc
index 00edc73f6e6d0cfd5d6f5f40458bc3f7bdf70678..0ba0ff123fe6a7c786a6bce359821aa3f0890683 100644
--- a/src/mips/disasm-mips.cc
+++ b/src/mips/disasm-mips.cc
@@ -24,17 +24,17 @@
 
 
 #include <assert.h>
-#include <stdio.h>
 #include <stdarg.h>
+#include <stdio.h>
 #include <string.h>
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_MIPS
 
-#include "src/mips/constants-mips.h"
 #include "src/disasm.h"
 #include "src/macro-assembler.h"
+#include "src/mips/constants-mips.h"
 #include "src/platform.h"
 
 namespace v8 {