Fix presubmit style error in parser.cc

src/parser.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"
 
 #include "src/api.h"
 #include "src/ast.h"
 #include "src/bootstrapper.h"
 #include "src/char-predicates-inl.h"
@@ skipping 2269 matching lines @@
   if (nvars == 1 && !is_const) {
     *out = name;
   }
 
   return block;
 }
 
 
 static bool ContainsLabel(ZoneStringList* labels, Handle<String> label) {
   ASSERT(!label.is_null());
-  if (labels != NULL)
-    for (int i = labels->length(); i-- > 0; )
-      if (labels->at(i).is_identical_to(label))
+  if (labels != NULL) {
+    for (int i = labels->length(); i-- > 0; ) {
+      if (labels->at(i).is_identical_to(label)) {
         return true;
-
+      }
+    }
+  }
   return false;
 }
 
 
 Statement* Parser::ParseExpressionOrLabelledStatement(ZoneStringList* labels,
                                                       bool* ok) {
   // ExpressionStatement | LabelledStatement ::
   //   Expression ';'
   //   Identifier ':' Statement
   int pos = peek_position();
@@ skipping 2476 matching lines @@
       ASSERT(info()->isolate()->has_pending_exception());
     } else {
       result = ParseProgram();
     }
   }
   info()->SetFunction(result);
   return (result != NULL);
 }
 
 } }  // namespace v8::internal