Minor changes based on the profile while running dart2js compile all.

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/dart_entry.h"
 #include "vm/debugger.h"
@@ skipping 58 matching lines @@
 
 
 bool FlowGraphCompiler::IsLeaf() const {
   return is_dart_leaf_ &&
          !parsed_function_.function().IsClosureFunction() &&
          (parsed_function().copied_parameter_count() == 0);
 }
 
 
 void FlowGraphCompiler::InitCompiler() {
-  pc_descriptors_list_ = new DescriptorList();
+  pc_descriptors_list_ = new DescriptorList(64);
   exception_handlers_list_ = new ExceptionHandlerList();
   block_info_.Clear();
   for (int i = 0; i < block_order_.length(); ++i) {
     block_info_.Add(new BlockInfo());
   }
 }
 
 
 bool FlowGraphCompiler::CanOptimize() {
   return !FLAG_report_usage_count &&
@@ skipping 702 matching lines @@
       return;
     }
   }
 
   // This move is not blocked.
   EmitMove(index);
 }
 
 
 }  // namespace dart