Cleanup change.

runtime/vm/code_generator.cc

 // Copyright (c) 2013, 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 "vm/code_generator.h"
 
 #include "vm/assembler.h"
 #include "vm/ast.h"
 #include "vm/code_patcher.h"
 #include "vm/compiler.h"
@@ skipping 259 matching lines @@
 // Return value: instantiated type arguments.
 DEFINE_RUNTIME_ENTRY(InstantiateTypeArguments, 2) {
   TypeArguments& type_arguments =
       TypeArguments::CheckedHandle(zone, arguments.ArgAt(0));
   const TypeArguments& instantiator =
       TypeArguments::CheckedHandle(zone, arguments.ArgAt(1));
   ASSERT(!type_arguments.IsNull() && !type_arguments.IsInstantiated());
   ASSERT(instantiator.IsNull() || instantiator.IsInstantiated());
   // Code inlined in the caller should have optimized the case where the
   // instantiator can be reused as type argument vector.
-  ASSERT(instantiator.IsNull() || !type_arguments.IsUninstantiatedIdentity());
+  ASSERT(!type_arguments.IsUninstantiatedIdentity());
   if (isolate->type_checks()) {
     Error& bound_error = Error::Handle(zone);
     type_arguments = type_arguments.InstantiateAndCanonicalizeFrom(
         instantiator, &bound_error);
     if (!bound_error.IsNull()) {
       // Throw a dynamic type error.
       const TokenPosition location = GetCallerLocation();
       String& bound_error_message =
           String::Handle(zone, String::New(bound_error.ToErrorCString()));
       Exceptions::CreateAndThrowTypeError(
@@ skipping 514 matching lines @@
   // handled by InvokeNoSuchMethodDispatcher.
   ASSERT(!result.IsNull() || !FLAG_lazy_dispatchers);
   return result.raw();
 }
 
 
 // Perform the subtype and return constant function based on the result.
 static RawFunction* ComputeTypeCheckTarget(const Instance& receiver,
                                            const AbstractType& type,
                                            const ArgumentsDescriptor& desc) {
-  const TypeArguments& checked_type_arguments = TypeArguments::Handle();
   Error& error = Error::Handle();
-  bool result = receiver.IsInstanceOf(type, checked_type_arguments, &error);
+  bool result =
+      receiver.IsInstanceOf(type, Object::null_type_arguments(), &error);
   ASSERT(error.IsNull());
   ObjectStore* store = Isolate::Current()->object_store();
   const Function& target =
       Function::Handle(result ? store->simple_instance_of_true_function()
                               : store->simple_instance_of_false_function());
   ASSERT(!target.IsNull());
   return target.raw();
 }
 
 
@@ skipping 1433 matching lines @@
   const intptr_t elm_size = old_data.ElementSizeInBytes();
   const TypedData& new_data =
       TypedData::Handle(TypedData::New(cid, new_size, Heap::kOld));
   TypedData::Copy(new_data, 0, old_data, 0, old_size * elm_size);
   typed_data_cell.SetAt(0, new_data);
   arguments.SetReturn(new_data);
 }
 
 
 }  // namespace dart