X87: [heap] Reland "Remove black pages and use black areas instead.".

src/x87/assembler-x87-inl.h

Index: src/x87/assembler-x87-inl.h
diff --git a/src/x87/assembler-x87-inl.h b/src/x87/assembler-x87-inl.h
index 75f850ac3f2691999c26638c60651ffea1a46cd3..78177d3dce41ef34607b9cea0c9ceedb00ca1113 100644
--- a/src/x87/assembler-x87-inl.h
+++ b/src/x87/assembler-x87-inl.h
@@ -140,6 +140,8 @@ void RelocInfo::set_target_object(Object* target,
       host() != NULL &&
       target->IsHeapObject()) {
     host()->GetHeap()->RecordWriteIntoCode(host(), this, target);
+    host()->GetHeap()->incremental_marking()->RecordWriteIntoCode(
+        host(), this, HeapObject::cast(target));
   }
 }