Remove dead isLocalPort from the VM mirrors implementation.

runtime/lib/mirrors.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "lib/invocation_mirror.h"
 #include "vm/bootstrap_natives.h"
 #include "vm/class_finalizer.h"
 #include "vm/compiler.h"
 #include "vm/dart_entry.h"
 #include "vm/exceptions.h"
@@ skipping 79 matching lines @@
       array.SetAt(i, param_name);
     }
     args.SetAt(5, array);
   }
 
   Exceptions::ThrowByType(Exceptions::kNoSuchMethod, args);
   UNREACHABLE();
 }
 
 
-DEFINE_NATIVE_ENTRY(Mirrors_isLocalPort, 1) {
-  GET_NON_NULL_NATIVE_ARGUMENT(Instance, port, arguments->NativeArgAt(0));
-
-  // Get the port id from the SendPort instance.
-  const Object& id_obj = Object::Handle(DartLibraryCalls::PortGetId(port));
-  if (id_obj.IsError()) {
-    Exceptions::PropagateError(Error::Cast(id_obj));
-    UNREACHABLE();
-  }
-  ASSERT(id_obj.IsSmi() || id_obj.IsMint());
-  Integer& id = Integer::Handle();
-  id ^= id_obj.raw();
-  Dart_Port port_id = static_cast<Dart_Port>(id.AsInt64Value());
-  return Bool::Get(PortMap::IsLocalPort(port_id)).raw();
-}
-
 static void EnsureConstructorsAreCompiled(const Function& func) {
   // Only generative constructors can have initializing formals.
   if (!func.IsConstructor()) return;
 
   const Class& cls = Class::Handle(func.Owner());
   const Error& error = Error::Handle(cls.EnsureIsFinalized(Isolate::Current()));
   if (!error.IsNull()) {
     ThrowInvokeError(error);
     UNREACHABLE();
   }
@@ skipping 1936 matching lines @@
 
 DEFINE_NATIVE_ENTRY(VariableMirror_type, 2) {
   GET_NON_NULL_NATIVE_ARGUMENT(MirrorReference, ref, arguments->NativeArgAt(0));
   const Field& field = Field::Handle(ref.GetFieldReferent());
   GET_NATIVE_ARGUMENT(AbstractType, instantiator, arguments->NativeArgAt(1));
   const AbstractType& type = AbstractType::Handle(field.type());
   return InstantiateType(type, instantiator);
 }
 
 }  // namespace dart