Remove Object::IsSpecObject, use Object::IsJSReceiver instead.

src/contexts.cc

 // Copyright 2011 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/contexts.h"
 
 #include "src/ast/scopeinfo.h"
 #include "src/bootstrapper.h"
 #include "src/debug/debug.h"
 #include "src/isolate-inl.h"
@@ skipping 143 matching lines @@
   if (!attrs.IsJust() || attrs.FromJust() == ABSENT) return attrs;
 
   Handle<Symbol> unscopables_symbol = isolate->factory()->unscopables_symbol();
   Handle<Object> receiver = it->GetReceiver();
   Handle<Object> unscopables;
   MaybeHandle<Object> maybe_unscopables =
       Object::GetProperty(receiver, unscopables_symbol);
   if (!maybe_unscopables.ToHandle(&unscopables)) {
     return Nothing<PropertyAttributes>();
   }
-  if (!unscopables->IsSpecObject()) return attrs;
+  if (!unscopables->IsJSReceiver()) return attrs;
   Handle<Object> blacklist;
   MaybeHandle<Object> maybe_blacklist =
       Object::GetProperty(unscopables, it->name());
   if (!maybe_blacklist.ToHandle(&blacklist)) {
     DCHECK(isolate->has_pending_exception());
     return Nothing<PropertyAttributes>();
   }
   return blacklist->BooleanValue() ? Just(ABSENT) : attrs;
 }
 
@@ skipping 404 matching lines @@
 
   int previous_value = errors_thrown()->value();
   set_errors_thrown(Smi::FromInt(previous_value + 1));
 }
 
 
 int Context::GetErrorsThrown() { return errors_thrown()->value(); }
 
 }  // namespace internal
 }  // namespace v8