[turbofan] Some cleanup to the Typer.

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/factory.h"
 #include "src/handles.h"
@@ skipping 203 matching lines @@
   V(Internal,            1u << 19 | REPRESENTATION(kTagged | kUntagged)) \
   \
   V(Signed31,            kUnsigned30 | kNegative31) \
   V(Signed32,            kSigned31 | kOtherUnsigned31 | kOtherSigned32) \
   V(Negative32,          kNegative31 | kOtherSigned32) \
   V(Unsigned31,          kUnsigned30 | kOtherUnsigned31) \
   V(Unsigned32,          kUnsigned30 | kOtherUnsigned31 | kOtherUnsigned32) \
   V(Integral32,          kSigned32 | kUnsigned32) \
   V(PlainNumber,         kIntegral32 | kOtherNumber) \
   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(NullOrUndefined,     kNull | kUndefined) \
   V(NumberOrString,      kNumber | kString) \
-  V(PlainPrimitive,      kNumberOrString | kBoolean | kNull | kUndefined) \
+  V(NumberOrUndefined,   kNumber | kUndefined) \
+  V(PlainPrimitive,      kNumberOrString | kBoolean | kNullOrUndefined) \
   V(Primitive,           kSymbol | kPlainPrimitive) \
   V(DetectableObject,    kGlobalObject | kOtherObject) \
   V(DetectableReceiver,  kDetectableObject | kProxy) \
   V(Detectable,          kDetectableReceiver | kNumber | kName) \
   V(Object,              kDetectableObject | kUndetectable) \
   V(Receiver,            kObject | kProxy) \
   V(ReceiverOrUndefined, kReceiver | kUndefined) \
   V(StringOrReceiver,    kString | kReceiver) \
   V(Unique,              kBoolean | kUniqueName | kNull | kUndefined | \
                          kReceiver) \
@@ skipping 920 matching lines @@
   bool Narrows(BoundsImpl that) {
     return that.lower->Is(this->lower) && this->upper->Is(that.upper);
   }
 };
 
 typedef BoundsImpl<ZoneTypeConfig> Bounds;
 
 } }  // namespace v8::internal
 
 #endif  // V8_TYPES_H_