[turbofan] Initial attempt to cleanup Node and related classes.

src/compiler/common-operator.h

 // Copyright 2013 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_COMMON_OPERATOR_H_
 #define V8_COMPILER_COMMON_OPERATOR_H_
 
 #include "src/compiler/machine-type.h"
 #include "src/unique.h"
 
@@ skipping 135 matching lines @@
 };
 
 bool operator==(FrameStateCallInfo const&, FrameStateCallInfo const&);
 bool operator!=(FrameStateCallInfo const&, FrameStateCallInfo const&);
 
 size_t hash_value(FrameStateCallInfo const&);
 
 std::ostream& operator<<(std::ostream&, FrameStateCallInfo const&);
 
 
+size_t ProjectionIndexOf(const Operator* const);
+
+
 // Interface for building common operators that can be used at any level of IR,
 // including JavaScript, mid-level, and low-level.
 class CommonOperatorBuilder FINAL : public ZoneObject {
  public:
   explicit CommonOperatorBuilder(Zone* zone);
 
   const Operator* Dead();
   const Operator* End();
   const Operator* Branch(BranchHint = BranchHint::kNone);
   const Operator* IfTrue();
@@ skipping 39 matching lines @@
   Zone* const zone_;
 
   DISALLOW_COPY_AND_ASSIGN(CommonOperatorBuilder);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_COMMON_OPERATOR_H_