[compiler] Drop the CompareNilIC.

test/cctest/test-types.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <vector>
 
 #include "src/crankshaft/hydrogen-types.h"
 #include "src/types.h"
 #include "test/cctest/cctest.h"
 #include "test/cctest/types-fuzz.h"
@@ skipping 923 matching lines @@
     CheckSub(T.InternalizedString, T.Name);
     CheckSub(T.Symbol, T.UniqueName);
     CheckSub(T.Symbol, T.Name);
     CheckUnordered(T.String, T.UniqueName);
     CheckUnordered(T.String, T.Symbol);
     CheckUnordered(T.InternalizedString, T.Symbol);
 
     CheckSub(T.Object, T.Receiver);
     CheckSub(T.Proxy, T.Receiver);
     CheckSub(T.OtherObject, T.Object);
-    CheckSub(T.Undetectable, T.Object);
+    CheckSub(T.OtherUndetectable, T.Object);
     CheckSub(T.OtherObject, T.Object);
 
     CheckUnordered(T.Object, T.Proxy);
     CheckUnordered(T.OtherObject, T.Undetectable);
 
     // Subtyping between concrete structural types
 
     CheckSub(T.ObjectClass, T.Object);
     CheckSub(T.ArrayClass, T.OtherObject);
     CheckSub(T.UninitializedClass, T.Internal);
@@ skipping 961 matching lines @@
 
 TEST(Union4_zone) { Tests().Union4(); }
 
 TEST(Intersect_zone) { Tests().Intersect(); }
 
 TEST(Distributivity_zone) { Tests().Distributivity(); }
 
 TEST(GetRange_zone) { Tests().GetRange(); }
 
 TEST(HTypeFromType_zone) { Tests().HTypeFromType(); }