Call RecordWriteIntoCode in RelocInfo::set_target_cell.

src/ia32/assembler-ia32-inl.h

Index: src/ia32/assembler-ia32-inl.h
diff --git a/src/ia32/assembler-ia32-inl.h b/src/ia32/assembler-ia32-inl.h
index d957872cabfaedffa8f1ce955c967fbaf678f3ef..77b55c644fb41cd11ebcf6888f84927d0d5673d9 100644
--- a/src/ia32/assembler-ia32-inl.h
+++ b/src/ia32/assembler-ia32-inl.h
@@ -203,10 +203,8 @@ void RelocInfo::set_target_cell(Cell* cell,
     Assembler::FlushICache(isolate_, pc_, sizeof(Address));
   }
   if (write_barrier_mode == UPDATE_WRITE_BARRIER && host() != NULL) {
-    // TODO(1550) We are passing NULL as a slot because cell can never be on
-    // evacuation candidate.
-    host()->GetHeap()->incremental_marking()->RecordWrite(
-        host(), NULL, cell);
+    host()->GetHeap()->incremental_marking()->RecordWriteIntoCode(host(), this,
+                                                                  cell);
   }
 }