Revert "Implement structural function and array types"

src/arm64/stub-cache-arm64.cc

Index: src/arm64/stub-cache-arm64.cc
diff --git a/src/arm64/stub-cache-arm64.cc b/src/arm64/stub-cache-arm64.cc
index bf128409816b211b4385890089030c69e6dae2bc..e5383f166dbe21ff085ce286e3c69c8461851974 100644
--- a/src/arm64/stub-cache-arm64.cc
+++ b/src/arm64/stub-cache-arm64.cc
@@ -394,7 +394,7 @@ void StoreStubCompiler::GenerateStoreTransition(MacroAssembler* masm,
   } else if (representation.IsHeapObject()) {
     HeapType* field_type = descriptors->GetFieldType(descriptor);
     if (field_type->IsClass()) {
-      __ CheckMap(value_reg, scratch1, field_type->AsClass()->Map(),
+      __ CheckMap(value_reg, scratch1, field_type->AsClass(),
                   miss_label, DO_SMI_CHECK);
     } else {
       ASSERT(HeapType::Any()->Is(field_type));
@@ -550,7 +550,7 @@ void StoreStubCompiler::GenerateStoreField(MacroAssembler* masm,
   } else if (representation.IsHeapObject()) {
     HeapType* field_type = lookup->GetFieldType();
     if (field_type->IsClass()) {
-      __ CheckMap(value_reg, scratch1, field_type->AsClass()->Map(),
+      __ CheckMap(value_reg, scratch1, field_type->AsClass(),
                   miss_label, DO_SMI_CHECK);
     } else {
       ASSERT(HeapType::Any()->Is(field_type));
@@ -802,7 +802,7 @@ Register StubCompiler::CheckPrototypes(Handle<HeapType> type,
 
   Handle<JSObject> current = Handle<JSObject>::null();
   if (type->IsConstant()) {
-    current = Handle<JSObject>::cast(type->AsConstant()->Value());
+    current = Handle<JSObject>::cast(type->AsConstant());
   }
   Handle<JSObject> prototype = Handle<JSObject>::null();
   Handle<Map> current_map = receiver_map;