Fix VS2005 build.

src/mips/lithium-codegen-mips.cc

 // Copyright 2012 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 4771 matching lines @@
     }
 
     // Copy elements backing store content.
     int elements_length = has_elements ? elements->length() : 0;
     if (elements->IsFixedDoubleArray()) {
       Handle<FixedDoubleArray> double_array =
           Handle<FixedDoubleArray>::cast(elements);
       for (int i = 0; i < elements_length; i++) {
         int64_t value = double_array->get_representation(i);
         // We only support little endian mode...
-        int32_t value_low = value & 0xFFFFFFFF;
-        int32_t value_high = value >> 32;
+        int32_t value_low = static_cast<int32_t>(value & 0xFFFFFFFF);
+        int32_t value_high = static_cast<int32_t>(value >> 32);
         int total_offset =
             elements_offset + FixedDoubleArray::OffsetOfElementAt(i);
         __ li(a2, Operand(value_low));
         __ sw(a2, FieldMemOperand(result, total_offset));
         __ li(a2, Operand(value_high));
         __ sw(a2, FieldMemOperand(result, total_offset + 4));
       }
     } else if (elements->IsFixedArray()) {
       Handle<FixedArray> fast_elements = Handle<FixedArray>::cast(elements);
       for (int i = 0; i < elements_length; i++) {
@@ skipping 555 matching lines @@
   __ Subu(scratch, result, scratch);
   __ lw(result, FieldMemOperand(scratch,
                                 FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal