Migrate Object constructor to C++

src/crankshaft/hydrogen.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 "src/crankshaft/hydrogen.h"
 
 #include <memory>
 #include <sstream>
 
 #include "src/allocation-site-scopes.h"
@@ skipping 9762 matching lines @@
   }
 
   if (FLAG_inline_construct &&
       expr->IsMonomorphic() &&
       IsAllocationInlineable(expr->target())) {
     Handle<JSFunction> constructor = expr->target();
     DCHECK(
         constructor->shared()->construct_stub() ==
             isolate()->builtins()->builtin(Builtins::kJSConstructStubGeneric) ||
         constructor->shared()->construct_stub() ==
-            isolate()->builtins()->builtin(Builtins::kJSConstructStubApi));
+            isolate()->builtins()->builtin(Builtins::kJSConstructStubApi) ||
+        constructor->shared()->construct_stub() ==
+            isolate()->builtins()->builtin(
+                Builtins::kObjectConstructor_ConstructStub));
     HValue* check = Add<HCheckValue>(function, constructor);
 
     // Force completion of inobject slack tracking before generating
     // allocation code to finalize instance size.
     constructor->CompleteInobjectSlackTrackingIfActive();
 
     // Calculate instance size from initial map of constructor.
     DCHECK(constructor->has_initial_map());
     Handle<Map> initial_map(constructor->initial_map());
     int instance_size = initial_map->instance_size();
@@ skipping 2941 matching lines @@
     isolate()->GetHTracer()->TraceHydrogen(name(), graph_);
   }
 
 #ifdef DEBUG
   graph_->Verify(false);  // No full verify.
 #endif
 }
 
 }  // namespace internal
 }  // namespace v8