Remove support for Object.observe

test/cctest/test-field-type-tracking.cc

Index: test/cctest/test-field-type-tracking.cc
diff --git a/test/cctest/test-field-type-tracking.cc b/test/cctest/test-field-type-tracking.cc
index 7b262db38624f6791d1bdbbd26213f84e308297c..8ee5dbac6c94d090c8f115a8f04082b999b701cc 100644
--- a/test/cctest/test-field-type-tracking.cc
+++ b/test/cctest/test-field-type-tracking.cc
@@ -1774,63 +1774,6 @@ TEST(ElementsKindTransitionFromMapNotOwningDescriptor) {
 }
 
 
-TEST(ForObservedTransitionFromMapOwningDescriptor) {
-  CcTest::InitializeVM();
-  v8::HandleScope scope(CcTest::isolate());
-  Isolate* isolate = CcTest::i_isolate();
-  Handle<FieldType> any_type = FieldType::Any(isolate);
-  Handle<FieldType> value_type =
-      FieldType::Class(Map::Create(isolate, 0), isolate);
-
-  struct TestConfig {
-    Handle<Map> Transition(Handle<Map> map) {
-      return Map::CopyForObserved(map);
-    }
-    // TODO(ishell): remove once IS_PROTO_TRANS_ISSUE_FIXED is removed.
-    bool generalizes_representations() const { return false; }
-    bool is_non_equevalent_transition() const { return true; }
-  };
-  TestConfig config;
-  TestGeneralizeRepresentationWithSpecialTransition(
-      config, Representation::Smi(), any_type, Representation::HeapObject(),
-      value_type, Representation::Tagged(), any_type);
-}
-
-
-TEST(ForObservedTransitionFromMapNotOwningDescriptor) {
-  CcTest::InitializeVM();
-  v8::HandleScope scope(CcTest::isolate());
-  Isolate* isolate = CcTest::i_isolate();
-  Handle<FieldType> any_type = FieldType::Any(isolate);
-  Handle<FieldType> value_type =
-      FieldType::Class(Map::Create(isolate, 0), isolate);
-
-  struct TestConfig {
-    Handle<Map> Transition(Handle<Map> map) {
-      Isolate* isolate = CcTest::i_isolate();
-      Handle<FieldType> any_type = FieldType::Any(isolate);
-
-      // Add one more transition to |map| in order to prevent descriptors
-      // ownership.
-      CHECK(map->owns_descriptors());
-      Map::CopyWithField(map, MakeString("foo"), any_type, NONE,
-                         Representation::Smi(), INSERT_TRANSITION)
-          .ToHandleChecked();
-      CHECK(!map->owns_descriptors());
-
-      return Map::CopyForObserved(map);
-    }
-    // TODO(ishell): remove once IS_PROTO_TRANS_ISSUE_FIXED is removed.
-    bool generalizes_representations() const { return false; }
-    bool is_non_equevalent_transition() const { return true; }
-  };
-  TestConfig config;
-  TestGeneralizeRepresentationWithSpecialTransition(
-      config, Representation::Smi(), any_type, Representation::HeapObject(),
-      value_type, Representation::Tagged(), any_type);
-}
-
-
 TEST(PrototypeTransitionFromMapOwningDescriptor) {
   CcTest::InitializeVM();
   v8::HandleScope scope(CcTest::isolate());