[Turbofan] Introduce OtherNumberConstant.

src/compiler/operation-typer.cc

 // Copyright 2016 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.
 
 #include "src/compiler/operation-typer.h"
 
 #include "src/compiler/common-operator.h"
 #include "src/compiler/type-cache.h"
 #include "src/compiler/types.h"
 #include "src/factory.h"
 #include "src/isolate.h"
 
 #include "src/objects-inl.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 OperationTyper::OperationTyper(Isolate* isolate, Zone* zone)
     : zone_(zone), cache_(TypeCache::Get()) {
   Factory* factory = isolate->factory();
-  infinity_ = Type::Constant(factory->infinity_value(), zone);
-  minus_infinity_ = Type::Constant(factory->minus_infinity_value(), zone);
+  infinity_ = Type::NewConstant(factory->infinity_value(), zone);
+  minus_infinity_ = Type::NewConstant(factory->minus_infinity_value(), zone);
   Type* truncating_to_zero = Type::MinusZeroOrNaN();
   DCHECK(!truncating_to_zero->Maybe(Type::Integral32()));
 
-  singleton_false_ = Type::Constant(factory->false_value(), zone);
-  singleton_true_ = Type::Constant(factory->true_value(), zone);
-  singleton_the_hole_ = Type::Constant(factory->the_hole_value(), zone);
+  singleton_false_ = Type::HeapConstant(factory->false_value(), zone);
+  singleton_true_ = Type::HeapConstant(factory->true_value(), zone);
+  singleton_the_hole_ = Type::HeapConstant(factory->the_hole_value(), zone);
   signed32ish_ = Type::Union(Type::Signed32(), truncating_to_zero, zone);
   unsigned32ish_ = Type::Union(Type::Unsigned32(), truncating_to_zero, zone);
 }
 
 Type* OperationTyper::Merge(Type* left, Type* right) {
   return Type::Union(left, right, zone());
 }
 
 Type* OperationTyper::WeakenRange(Type* previous_range, Type* current_range) {
   static const double kWeakenMinLimits[] = {0.0,
@@ skipping 925 matching lines @@
   return singleton_true();
 }
 
 Type* OperationTyper::TypeTypeGuard(const Operator* sigma_op, Type* input) {
   return Type::Intersect(input, TypeGuardTypeOf(sigma_op), zone());
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8