Fix allocation of array tables (use store barrier if needed, store values directly instead of via s…

runtime/vm/flow_graph_optimizer.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/flow_graph_optimizer.h"
 
 #include "vm/bit_vector.h"
 #include "vm/cha.h"
 #include "vm/flow_graph_builder.h"
 #include "vm/flow_graph_compiler.h"
@@ skipping 4256 matching lines @@
 void ConstantPropagator::VisitAllocateObjectWithBoundsCheck(
     AllocateObjectWithBoundsCheckInstr* instr) {
   SetValue(instr, non_constant_);
 }
 
 
 void ConstantPropagator::VisitLoadField(LoadFieldInstr* instr) {
   if ((instr->recognized_kind() == MethodRecognizer::kObjectArrayLength) &&
       (instr->value()->definition()->IsCreateArray())) {
     const intptr_t length =
-        instr->value()->definition()->AsCreateArray()->ArgumentCount();
+        instr->value()->definition()->AsCreateArray()->num_elements();
     const Object& result = Smi::ZoneHandle(Smi::New(length));
     SetValue(instr, result);
     return;
   }
 
   if (instr->IsImmutableLengthLoad()) {
     ConstantInstr* constant = instr->value()->definition()->AsConstant();
     if (constant != NULL) {
       if (constant->value().IsString()) {
         SetValue(instr, Smi::ZoneHandle(
@@ skipping 398 matching lines @@
 
   if (FLAG_trace_constant_propagation) {
     OS::Print("\n==== After constant propagation ====\n");
     FlowGraphPrinter printer(*graph_);
     printer.PrintBlocks();
   }
 }
 
 
 }  // namespace dart