Add aliasing disambiguation for typed data lists.

runtime/vm/intermediate_language.h

 // 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.
 
 #ifndef VM_INTERMEDIATE_LANGUAGE_H_
 #define VM_INTERMEDIATE_LANGUAGE_H_
 
 #include "vm/allocation.h"
 #include "vm/ast.h"
 #include "vm/growable_array.h"
@@ skipping 3325 matching lines @@
   bool is_known_list_constructor() const { return is_known_list_constructor_; }
   void set_is_known_list_constructor(bool value) {
     is_known_list_constructor_ = value;
   }
 
   bool is_native_list_factory() const { return is_native_list_factory_; }
   void set_is_native_list_factory(bool value) {
     is_native_list_factory_ = value;
   }
 
+  bool IsRecognizedFactory() const {
+    return is_known_list_constructor() || is_native_list_factory();
+  }
+
   virtual bool MayThrow() const { return true; }
 
   virtual AliasIdentity Identity() const { return identity_; }
   virtual void SetIdentity(AliasIdentity identity) { identity_ = identity; }
 
  private:
   const ICData* ic_data_;
   const intptr_t token_pos_;
   const Function& function_;
   const Array& argument_names_;
@@ skipping 4348 matching lines @@
   ForwardInstructionIterator* current_iterator_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(FlowGraphVisitor);
 };
 
 
 }  // namespace dart
 
 #endif  // VM_INTERMEDIATE_LANGUAGE_H_