Polish Maybe API a bit, removing useless creativity and fixing some signatures.

src/ic/ic-state.h

 // Copyright 2012 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_IC_STATE_H_
 #define V8_IC_STATE_H_
 
 #include "src/macro-assembler.h"
 
 namespace v8 {
@@ skipping 45 matching lines @@
 
 class BinaryOpICState FINAL BASE_EMBEDDED {
  public:
   BinaryOpICState(Isolate* isolate, ExtraICState extra_ic_state);
 
   BinaryOpICState(Isolate* isolate, Token::Value op)
       : op_(op),
         left_kind_(NONE),
         right_kind_(NONE),
         result_kind_(NONE),
+        fixed_right_arg_(Nothing<int>()),
         isolate_(isolate) {
     DCHECK_LE(FIRST_TOKEN, op);
     DCHECK_LE(op, LAST_TOKEN);
   }
 
   InlineCacheState GetICState() const {
     if (Max(left_kind_, right_kind_) == NONE) {
       return ::v8::internal::UNINITIALIZED;
     }
     if (Max(left_kind_, right_kind_) == GENERIC) {
@@ skipping 138 matching lines @@
  private:
   class ContextualModeBits : public BitField<ContextualMode, 0, 1> {};
   STATIC_ASSERT(static_cast<int>(NOT_CONTEXTUAL) == 0);
 
   const ExtraICState state_;
 };
 }
 }
 
 #endif  // V8_IC_STATE_H_