Moved lastadded from DescriptorArray to Map. Renamed kLastAdded to kEnumCache.

src/mips/full-codegen-mips.cc

Index: src/mips/full-codegen-mips.cc
diff --git a/src/mips/full-codegen-mips.cc b/src/mips/full-codegen-mips.cc
index 55b37b45df7c9144a97de9ccb1381ff861bbe2d9..6f4869e2451d134497d6294478f75dcad99da9f8 100644
--- a/src/mips/full-codegen-mips.cc
+++ b/src/mips/full-codegen-mips.cc
@@ -1149,7 +1149,7 @@ void FullCodeGenerator::VisitForInStatement(ForInStatement* stmt) {
   // We got a map in register v0. Get the enumeration cache from it.
   __ bind(&use_cache);
   __ LoadInstanceDescriptors(v0, a1, a2);
-  __ lw(a1, FieldMemOperand(a1, DescriptorArray::kLastAddedOffset));
+  __ lw(a1, FieldMemOperand(a1, DescriptorArray::kEnumCacheOffset));
   __ lw(a2, FieldMemOperand(a1, DescriptorArray::kEnumCacheBridgeCacheOffset));
 
   // Set up the four remaining stack slots.