Fix presubmit failure.

src/data-flow.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 425 matching lines @@
   Visit(expr->expression());
   Variable* var = expr->expression()->AsVariableProxy()->AsVariable();
   if (var != NULL && var->IsStackAllocated()) {
     definitions_.Add(expr);
   }
   graph_.AppendInstruction(expr);
 }
 
 
 void FlowGraphBuilder::VisitBinaryOperation(BinaryOperation* expr) {
-
   switch (expr->op()) {
     case Token::COMMA:
     case Token::OR:
     case Token::AND:
       SetStackOverflow();
       break;
 
     case Token::BIT_OR:
     case Token::BIT_XOR:
     case Token::BIT_AND:
@@ skipping 938 matching lines @@
   for (int i = postorder->length() - 1; i >= 0; i--) {
     postorder->at(i)->PrintText();
   }
 }
 
 
 #endif  // defined(DEBUG)
 
 
 } }  // namespace v8::internal