Add read only handles for the following predefined symbols

vm/intermediate_language.h

 // 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.
 
 #ifndef VM_INTERMEDIATE_LANGUAGE_H_
 #define VM_INTERMEDIATE_LANGUAGE_H_
 
 #include "vm/allocation.h"
 #include "vm/ast.h"
 #include "vm/growable_array.h"
@@ skipping 2040 matching lines @@
                     ZoneGrowableArray<PushArgumentInstr*>* arguments,
                     const Array& argument_names,
                     intptr_t checked_argument_count)
       : ic_data_(Isolate::Current()->GetICDataForDeoptId(deopt_id())),
         token_pos_(token_pos),
         function_name_(function_name),
         token_kind_(token_kind),
         arguments_(arguments),
         argument_names_(argument_names),
         checked_argument_count_(checked_argument_count) {
-    ASSERT(function_name.IsZoneHandle());
+    ASSERT(function_name.IsPredefinedHandle() || function_name.IsZoneHandle());
     ASSERT(!arguments->is_empty());
     ASSERT(argument_names.IsZoneHandle());
     ASSERT(Token::IsBinaryOperator(token_kind) ||
            Token::IsPrefixOperator(token_kind) ||
            Token::IsIndexOperator(token_kind) ||
            token_kind == Token::kGET ||
            token_kind == Token::kSET ||
            token_kind == Token::kILLEGAL);
   }
 
@@ skipping 2229 matching lines @@
   ForwardInstructionIterator* current_iterator_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(FlowGraphVisitor);
 };
 
 
 }  // namespace dart
 
 #endif  // VM_INTERMEDIATE_LANGUAGE_H_