Revert "Changing string length field type from int to SMI."

test/cctest/test-serialize.cc

Index: test/cctest/test-serialize.cc
diff --git a/test/cctest/test-serialize.cc b/test/cctest/test-serialize.cc
index c4c8a4579fc6b3650b20ed9e507cb18f83da474e..54e69a1d54c6b7b22fc033b93f6405fc1af9bec5 100644
--- a/test/cctest/test-serialize.cc
+++ b/test/cctest/test-serialize.cc
@@ -573,8 +573,7 @@ TEST(LinearAllocation) {
         FixedArray::kHeaderSize + kSmallFixedArrayLength * kPointerSize;
     const int kSmallStringLength = 16;
     const int kSmallStringSize =
-        (SeqAsciiString::kHeaderSize + kSmallStringLength +
-        kObjectAlignmentMask) & ~kObjectAlignmentMask;
+        SeqAsciiString::kHeaderSize + kSmallStringLength;
     const int kMapSize = Map::kSize;
 
     Object* new_last = NULL;