Make sure that ICData always contains valid data (non-null values).

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 87 matching lines @@
   void ReplaceWithInstanceOf(InstanceCallInstr* instr);
   void ReplaceWithTypeCast(InstanceCallInstr* instr);
 
   LoadIndexedInstr* BuildStringCodeUnitAt(InstanceCallInstr* call,
                                           intptr_t cid);
 
   bool BuildByteArrayViewLoad(InstanceCallInstr* call,
                               intptr_t receiver_cid,
                               intptr_t view_cid);
   bool BuildByteArrayViewStore(InstanceCallInstr* call,
-                               intptr_t receiver_cid,
                                intptr_t view_cid);
   void PrepareByteArrayViewOp(InstanceCallInstr* call,
                               intptr_t receiver_cid,
                               intptr_t view_cid,
                               Definition** array);
 
   // Insert a check of 'to_check' determined by 'unary_checks'.  If the
   // check fails it will deoptimize to 'deopt_id' using the deoptimization
   // environment 'deopt_environment'.  The check is inserted immediately
   // before 'insert_before'.
@@ skipping 251 matching lines @@
 // Optimize spill stores inside try-blocks by identifying values that always
 // contain a single known constant at catch block entry.
 class TryCatchAnalyzer : public AllStatic {
  public:
   static void Optimize(FlowGraph* flow_graph);
 };
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_OPTIMIZER_H_