Allow equality operation on mixed double/smi arguments.

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 147 matching lines @@
   void InlineStringLengthGetter(InstanceCallInstr* call);
   void InlineStringIsEmptyGetter(InstanceCallInstr* call);
   void InlineObjectCid(InstanceCallInstr* call);
 
   RawBool* InstanceOfAsBool(const ICData& ic_data,
                             const AbstractType& type) const;
 
   void ReplaceWithMathCFunction(InstanceCallInstr* call,
                                 MethodRecognizer::Kind recognized_kind);
 
+  void HandleComparison(ComparisonInstr* comp,
+                        const ICData& ic_data,
+                        Instruction* current_instruction);
+
   void HandleRelationalOp(RelationalOpInstr* comp);
 
   // Visit an equality compare.  The current instruction can be the
   // comparison itself or a branch on the comparison.
   template <typename T>
   void HandleEqualityCompare(EqualityCompareInstr* comp,
                              T current_instruction);
 
   static bool CanStrictifyEqualityCompare(EqualityCompareInstr* call);
 
@@ skipping 185 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_