[turbofan] Use range types to type and lower arithmetic ops.

test/cctest/types-fuzz.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 85 matching lines @@
     integers.push_back(isolate->factory()->NewNumber(+V8_INFINITY));
     integers.push_back(isolate->factory()->NewNumber(-rng_->NextInt(10)));
     integers.push_back(isolate->factory()->NewNumber(+rng_->NextInt(10)));
     for (int i = 0; i < 10; ++i) {
       double x = rng_->NextInt();
       integers.push_back(isolate->factory()->NewNumber(x));
       x *= rng_->NextInt();
       if (!IsMinusZero(x)) integers.push_back(isolate->factory()->NewNumber(x));
     }
 
+    Integer = Type::Range(isolate->factory()->NewNumber(-V8_INFINITY),
+                          isolate->factory()->NewNumber(+V8_INFINITY), region);
+
     NumberArray = Type::Array(Number, region);
     StringArray = Type::Array(String, region);
     AnyArray = Type::Array(Any, region);
 
     SignedFunction1 = Type::Function(SignedSmall, SignedSmall, region);
     NumberFunction1 = Type::Function(Number, Number, region);
     NumberFunction2 = Type::Function(Number, Number, Number, region);
     MethodFunction = Type::Function(String, Object, 0, region);
 
     for (int i = 0; i < 30; ++i) {
@@ skipping 22 matching lines @@
   TypeHandle NumberClass;
   TypeHandle UninitializedClass;
 
   TypeHandle SmiConstant;
   TypeHandle Signed32Constant;
   TypeHandle ObjectConstant1;
   TypeHandle ObjectConstant2;
   TypeHandle ArrayConstant;
   TypeHandle UninitializedConstant;
 
+  TypeHandle Integer;
+
   TypeHandle NumberArray;
   TypeHandle StringArray;
   TypeHandle AnyArray;
 
   TypeHandle SignedFunction1;
   TypeHandle NumberFunction1;
   TypeHandle NumberFunction2;
   TypeHandle MethodFunction;
 
   typedef std::vector<TypeHandle> TypeVector;
@@ skipping 150 matching lines @@
 
  private:
   Region* region_;
   v8::base::RandomNumberGenerator* rng_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif