Introduce a class encapsulating arguments descriptor arrays.

runtime/vm/flow_graph_compiler.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 "vm/globals.h"  // Needed here to get TARGET_ARCH_XXX.
 
 #include "vm/flow_graph_compiler.h"
 
 #include "vm/cha.h"
 #include "vm/dart_entry.h"
@@ skipping 480 matching lines @@
 void FlowGraphCompiler::GenerateInstanceCall(
     intptr_t deopt_id,
     intptr_t token_pos,
     intptr_t argument_count,
     const Array& argument_names,
     LocationSummary* locs,
     const ICData& ic_data) {
   ASSERT(!ic_data.IsNull());
   ASSERT(FLAG_propagate_ic_data || (ic_data.NumberOfChecks() == 0));
   const Array& arguments_descriptor =
-      DartEntry::ArgumentsDescriptor(argument_count, argument_names);
+      Array::ZoneHandle(ArgumentsDescriptor::New(argument_count,
+                                                 argument_names));
   uword label_address = 0;
   if (is_optimizing() && (ic_data.NumberOfChecks() == 0)) {
     if (ic_data.is_closure_call()) {
       // This IC call may be closure call only.
       label_address = StubCode::ClosureCallInlineCacheEntryPoint();
       ExternalLabel target_label("InlineCache", label_address);
       EmitInstanceCall(&target_label,
                        ICData::ZoneHandle(ic_data.AsUnaryClassChecks()),
                        arguments_descriptor, argument_count,
                        deopt_id, token_pos, locs);
@@ skipping 46 matching lines @@
 }
 
 
 void FlowGraphCompiler::GenerateStaticCall(intptr_t deopt_id,
                                            intptr_t token_pos,
                                            const Function& function,
                                            intptr_t argument_count,
                                            const Array& argument_names,
                                            LocationSummary* locs) {
   const Array& arguments_descriptor =
-      DartEntry::ArgumentsDescriptor(argument_count, argument_names);
+      Array::ZoneHandle(ArgumentsDescriptor::New(argument_count,
+                                                 argument_names));
   EmitStaticCall(function, arguments_descriptor, argument_count,
                  deopt_id, token_pos, locs);
 }
 
 
 void FlowGraphCompiler::GenerateNumberTypeCheck(Register kClassIdReg,
                                                 const AbstractType& type,
                                                 Label* is_instance_lbl,
                                                 Label* is_not_instance_lbl) {
   assembler()->Comment("NumberTypeCheck");
@@ skipping 448 matching lines @@
     const AbstractTypeArguments& type_arguments =
         AbstractTypeArguments::Handle(type.arguments());
     const bool is_raw_type = type_arguments.IsNull() ||
         type_arguments.IsRaw(type_arguments.Length());
     return is_raw_type;
   }
   return true;
 }
 
 }  // namespace dart