Introduce simplified BooleanToNumber operator.

src/compiler/opcodes.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_OPCODES_H_
 #define V8_COMPILER_OPCODES_H_
 
 // Opcodes for control operators.
 #define INNER_CONTROL_OP_LIST(V) \
   V(Dead)                  \
@@ skipping 113 matching lines @@
 #define JS_OP_LIST(V)     \
   JS_SIMPLE_BINOP_LIST(V) \
   JS_SIMPLE_UNOP_LIST(V)  \
   JS_OBJECT_OP_LIST(V)    \
   JS_CONTEXT_OP_LIST(V)   \
   JS_OTHER_OP_LIST(V)
 
 // Opcodes for VirtuaMachine-level operators.
 #define SIMPLIFIED_OP_LIST(V) \
   V(BooleanNot)               \
+  V(BooleanToNumber)          \
   V(NumberEqual)              \
   V(NumberLessThan)           \
   V(NumberLessThanOrEqual)    \
   V(NumberAdd)                \
   V(NumberSubtract)           \
   V(NumberMultiply)           \
   V(NumberDivide)             \
   V(NumberModulus)            \
   V(NumberToInt32)            \
   V(NumberToUint32)           \
@@ skipping 152 matching lines @@
         return false;
     }
   }
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_OPCODES_H_