Towards removing dependency from generic lowering on compilation info.

src/compiler/js-generic-lowering.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_JS_GENERIC_LOWERING_H_
 #define V8_COMPILER_JS_GENERIC_LOWERING_H_
 
 #include "src/v8.h"
 
 #include "src/allocation.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/graph-reducer.h"
+#include "src/compiler/js-context-specialization.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/opcodes.h"
 #include "src/unique.h"
 
 namespace v8 {
 namespace internal {
 
 // Forward declarations.
 class HydrogenCodeStub;
 
 namespace compiler {
 
 // Forward declarations.
 class CommonOperatorBuilder;
 class MachineOperatorBuilder;
 class Linkage;
 
 // Lowers JS-level operators to runtime and IC calls in the "generic" case.
 class JSGenericLowering : public Reducer {
  public:
-  JSGenericLowering(CompilationInfo* info, JSGraph* graph,
-                    MachineOperatorBuilder* machine);
+  JSGenericLowering(JSGraph* graph, JSContextSpecializer* spec,
+                    Linkage* linkage, MachineOperatorBuilder* machine);
   virtual ~JSGenericLowering() {}
 
   virtual Reduction Reduce(Node* node);
 
  protected:
 // Dispatched depending on opcode.
 #define DECLARE_LOWER(x) Node* Lower##x(Node* node);
   ALL_OP_LIST(DECLARE_LOWER)
 #undef DECLARE_LOWER
 
@@ skipping 12 matching lines @@
   void ReplaceWithCompareIC(Node* node, Token::Value token, bool pure);
   void ReplaceWithICStubCall(Node* node, HydrogenCodeStub* stub);
   void ReplaceWithBuiltinCall(Node* node, Builtins::JavaScript id, int args);
   void ReplaceWithRuntimeCall(Node* node, Runtime::FunctionId f, int args = -1);
 
   Zone* zone() const { return graph()->zone(); }
   Isolate* isolate() const { return zone()->isolate(); }
   JSGraph* jsgraph() const { return jsgraph_; }
   Graph* graph() const { return jsgraph()->graph(); }
   Linkage* linkage() const { return linkage_; }
-  CompilationInfo* info() const { return info_; }
   CommonOperatorBuilder* common() const { return jsgraph()->common(); }
   MachineOperatorBuilder* machine() const { return machine_; }
 
  private:
-  CompilationInfo* info_;
   JSGraph* jsgraph_;
+  JSContextSpecializer* spec_;
   Linkage* linkage_;
   MachineOperatorBuilder* machine_;
   SetOncePointer<Node> centrystub_constant_;
 };
 }
 }
 }  // namespace v8::internal::compiler
 
 #endif  // V8_COMPILER_JS_GENERIC_LOWERING_H_