Cleanup: Unify CodeGenerator class across platforms

src/ia32/macro-assembler-ia32.h

Index: src/ia32/macro-assembler-ia32.h
diff --git a/src/ia32/macro-assembler-ia32.h b/src/ia32/macro-assembler-ia32.h
index 26283826e0e4f6101abdfc6f892dc0ab1d75ceef..6807d082d82d7b275f251d30ffe20b2af7881ad1 100644
--- a/src/ia32/macro-assembler-ia32.h
+++ b/src/ia32/macro-assembler-ia32.h
@@ -1082,6 +1082,14 @@ inline Operand FieldOperand(Register object,
 }
 
 
+inline Operand FixedArrayElementOperand(Register array,
+                                        Register index_as_smi,
+                                        int additional_offset = 0) {
+  int offset = FixedArray::kHeaderSize + additional_offset * kPointerSize;
+  return FieldOperand(array, index_as_smi, times_half_pointer_size, offset);
+}
+
+
 inline Operand ContextOperand(Register context, int index) {
   return Operand(context, Context::SlotOffset(index));
 }