Fix an undetected Smi overflow on ARM.

runtime/vm/object.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 4921 matching lines @@
 
   OBJECT_IMPLEMENTATION(Integer, Number);
   friend class Class;
 };
 
 
 class Smi : public Integer {
  public:
   static const intptr_t kBits = kSmiBits;
   static const intptr_t kMaxValue = kSmiMax;
-  static const intptr_t kMinValue =  kSmiMin;
+  static const intptr_t kMinValue = kSmiMin;
 
   intptr_t Value() const {
     return ValueFromRaw(raw_value());
   }
 
   virtual bool Equals(const Instance& other) const;
   virtual bool IsZero() const { return Value() == 0; }
   virtual bool IsNegative() const { return Value() < 0; }
   // Smi values are implicitly canonicalized.
   virtual RawInstance* CheckAndCanonicalize(const char** error_str) const {
@@ skipping 2116 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_