[turbofan] Unify the PlainPrimitive as Number treatment.

src/types.h

 // Copyright 2014 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_TYPES_H_
 #define V8_TYPES_H_
 
 #include "src/conversions.h"
 #include "src/handles.h"
 #include "src/objects.h"
@@ skipping 201 matching lines @@
   V(OrderedNumber,            kPlainNumber | kMinusZero) \
   V(MinusZeroOrNaN,           kMinusZero | kNaN) \
   V(Number,                   kOrderedNumber | kNaN) \
   V(String,                   kInternalizedString | kOtherString) \
   V(UniqueName,               kSymbol | kInternalizedString) \
   V(Name,                     kSymbol | kString) \
   V(BooleanOrNumber,          kBoolean | kNumber) \
   V(BooleanOrNullOrUndefined, kBoolean | kNull | kUndefined) \
   V(NullOrUndefined,          kNull | kUndefined) \
   V(Undetectable,             kNullOrUndefined | kOtherUndetectable) \
+  V(NumberOrOddball,          kNumber | kNullOrUndefined | kBoolean) \
   V(NumberOrSimdOrString,     kNumber | kSimd | kString) \
   V(NumberOrString,           kNumber | kString) \
   V(NumberOrUndefined,        kNumber | kUndefined) \
   V(PlainPrimitive,           kNumberOrString | kBoolean | kNullOrUndefined) \
   V(Primitive,                kSymbol | kSimd | kPlainPrimitive) \
   V(DetectableReceiver,       kFunction | kOtherObject | kProxy) \
   V(Object,                   kFunction | kOtherObject | kOtherUndetectable) \
   V(Receiver,                 kObject | kProxy) \
   V(StringOrReceiver,         kString | kReceiver) \
   V(Unique,                   kBoolean | kUniqueName | kNull | kUndefined | \
@@ skipping 731 matching lines @@
 
   bool Narrows(Bounds that) {
     return that.lower->Is(this->lower) && this->upper->Is(that.upper);
   }
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TYPES_H_