[turbofan] Desugar JSUnaryNot(x) to Select(x, false, true).

src/compiler/js-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_JS_OPERATOR_H_
 #define V8_COMPILER_JS_OPERATOR_H_
 
 #include "src/compiler/type-hints.h"
 #include "src/runtime/runtime.h"
 
@@ skipping 479 matching lines @@
   const Operator* Add(LanguageMode language_mode, BinaryOperationHints hints);
   const Operator* Subtract(LanguageMode language_mode,
                            BinaryOperationHints hints);
   const Operator* Multiply(LanguageMode language_mode,
                            BinaryOperationHints hints);
   const Operator* Divide(LanguageMode language_mode,
                          BinaryOperationHints hints);
   const Operator* Modulus(LanguageMode language_mode,
                           BinaryOperationHints hints);
 
-  const Operator* UnaryNot();
   const Operator* ToBoolean();
   const Operator* ToNumber();
   const Operator* ToString();
   const Operator* ToName();
   const Operator* ToObject();
   const Operator* Yield();
 
   const Operator* Create();
   const Operator* CreateArguments(CreateArgumentsParameters::Type type,
                                   int start_index);
@@ skipping 71 matching lines @@
   Zone* const zone_;
 
   DISALLOW_COPY_AND_ASSIGN(JSOperatorBuilder);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_JS_OPERATOR_H_