mark classes containing object array fields as needing an object mask in type-generator.cpp

src/type-generator.cpp

@@ -1951,6 +1951,11 @@ writeConstructors(Output* out, Object* declarations)
           out->write(obfuscate(memberName(m)));
           out->write(");\n");
 
+          hasObjectMask = true;
+        } else if (m->type == Object::Array
+                   and equal(memberTypeName(m), "object")
+                   and not memberNoGC(m))
+        {
           hasObjectMask = true;
         }
       }