[turbofan] Make sure Operator is really immutable.

src/compiler/operator-properties.h

Index: src/compiler/operator-properties.h
diff --git a/src/compiler/operator-properties.h b/src/compiler/operator-properties.h
index 01871937fd2c0b5979afea9829ecc70eb0435c7c..718eea0e2a716eec4849d74c9c53bf942e54e5d3 100644
--- a/src/compiler/operator-properties.h
+++ b/src/compiler/operator-properties.h
@@ -5,8 +5,6 @@
 #ifndef V8_COMPILER_OPERATOR_PROPERTIES_H_
 #define V8_COMPILER_OPERATOR_PROPERTIES_H_
 
-#include "src/v8.h"
-
 namespace v8 {
 namespace internal {
 namespace compiler {
@@ -15,31 +13,32 @@ class Operator;
 
 class OperatorProperties {
  public:
-  static inline bool HasValueInput(Operator* node);
-  static inline bool HasContextInput(Operator* node);
-  static inline bool HasEffectInput(Operator* node);
-  static inline bool HasControlInput(Operator* node);
-  static inline bool HasFrameStateInput(Operator* node);
-
-  static inline int GetValueInputCount(Operator* op);
-  static inline int GetContextInputCount(Operator* op);
-  static inline int GetEffectInputCount(Operator* op);
-  static inline int GetControlInputCount(Operator* op);
-  static inline int GetFrameStateInputCount(Operator* op);
-  static inline int GetTotalInputCount(Operator* op);
-
-  static inline bool HasValueOutput(Operator* op);
-  static inline bool HasEffectOutput(Operator* op);
-  static inline bool HasControlOutput(Operator* op);
-
-  static inline int GetValueOutputCount(Operator* op);
-  static inline int GetEffectOutputCount(Operator* op);
-  static inline int GetControlOutputCount(Operator* op);
-
-  static inline bool IsBasicBlockBegin(Operator* op);
+  static inline bool HasValueInput(const Operator* op);
+  static inline bool HasContextInput(const Operator* op);
+  static inline bool HasEffectInput(const Operator* op);
+  static inline bool HasControlInput(const Operator* op);
+  static inline bool HasFrameStateInput(const Operator* op);
+
+  static inline int GetValueInputCount(const Operator* op);
+  static inline int GetContextInputCount(const Operator* op);
+  static inline int GetEffectInputCount(const Operator* op);
+  static inline int GetControlInputCount(const Operator* op);
+  static inline int GetFrameStateInputCount(const Operator* op);
+  static inline int GetTotalInputCount(const Operator* op);
+
+  static inline bool HasValueOutput(const Operator* op);
+  static inline bool HasEffectOutput(const Operator* op);
+  static inline bool HasControlOutput(const Operator* op);
+
+  static inline int GetValueOutputCount(const Operator* op);
+  static inline int GetEffectOutputCount(const Operator* op);
+  static inline int GetControlOutputCount(const Operator* op);
+
+  static inline bool IsBasicBlockBegin(const Operator* op);
 };
-}
-}
-}  // namespace v8::internal::compiler
+
+}  // namespace compiler
+}  // namespace internal
+}  // namespace v8
 
 #endif  // V8_COMPILER_OPERATOR_PROPERTIES_H_