Inline GrowableObjectArray capacity getter, use CHA to eliminate load/store fields class checks.

runtime/vm/flow_graph_optimizer.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_FLOW_GRAPH_OPTIMIZER_H_
 #define VM_FLOW_GRAPH_OPTIMIZER_H_
 
 #include "vm/intermediate_language.h"
 #include "vm/flow_graph.h"
 
@@ skipping 42 matching lines @@
 
   void AddCheckClass(InstanceCallInstr* call, Value* value);
 
   void InsertAfter(Instruction* instr,
                    Definition* defn,
                    Environment* env,
                    Definition::UseKind use_kind);
 
   void InsertConversionsFor(Definition* def);
 
+  bool InstanceCallNeedsClassCheck(InstanceCallInstr* call) const;
+
   FlowGraph* flow_graph_;
 
   DISALLOW_COPY_AND_ASSIGN(FlowGraphOptimizer);
 };
 
 
 // Analyze the generated flow graph. Currently only if it is a leaf
 // method, i.e., does not contain any calls to runtime or other Dart code.
 class FlowGraphAnalyzer : public ValueObject {
  public:
@@ skipping 73 matching lines @@
  private:
   static void OptimizeRecursive(
       BlockEntryInstr* entry,
       DirectChainedHashMap<Definition*>* map);
 };
 
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_OPTIMIZER_H_