[runtime] Simplify TO_INT32/TO_UINT32 abstract operations.

src/runtime.js

 // Copyright 2006-2008 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.
 
 // This files contains runtime support implemented in JavaScript.
 
 // CAUTION: Some of the functions specified in this file are called
 // directly from compiled code. These are the functions with names in
 // ALL CAPS. The compiled code passes the first argument in 'this'.
 
@@ skipping 52 matching lines @@
 var TO_NAME;
 
 var $defaultNumber;
 var $defaultString;
 var $NaN;
 var $nonNumberToNumber;
 var $nonStringToString;
 var $sameValue;
 var $sameValueZero;
 var $toBoolean;
-var $toInt32;
 var $toInteger;
 var $toLength;
 var $toName;
 var $toNumber;
 var $toPositiveInteger;
 var $toPrimitive;
 var $toString;
-var $toUint32;
 
 (function(global, utils) {
 
 %CheckIsBootstrapping();
 
 var GlobalArray = global.Array;
 var GlobalBoolean = global.Boolean;
 var GlobalString = global.String;
 var GlobalNumber = global.Number;
 
@@ skipping 511 matching lines @@
   // array. This is the fast case. If this fails, we do the slow case
   // that takes care of more eventualities.
   if (IS_ARRAY(args)) {
     length = args.length;
     if (%_IsSmi(length) && length >= 0 && length < kSafeArgumentsLength &&
         IS_SPEC_FUNCTION(this)) {
       return length;
     }
   }
 
-  length = (args == null) ? 0 : %$toUint32(args.length);
+  length = (args == null) ? 0 : TO_UINT32(args.length);
 
   // We can handle any number of apply arguments if the stack is
   // big enough, but sanity check the value to avoid overflow when
   // multiplying with pointer size.
   if (length > kSafeArgumentsLength) throw %MakeRangeError(kStackOverflow);
 
   if (!IS_SPEC_FUNCTION(this)) {
     throw %MakeTypeError(kApplyNonFunction, %$toString(this), typeof this);
   }
 
@@ skipping 207 matching lines @@
 
 // ES6, draft 08-24-14, section 7.1.15
 function ToLength(arg) {
   arg = ToInteger(arg);
   if (arg < 0) return 0;
   return arg < GlobalNumber.MAX_SAFE_INTEGER ? arg
                                              : GlobalNumber.MAX_SAFE_INTEGER;
 }
 
 
-// ECMA-262, section 9.6, page 34.
-function ToUint32(x) {
-  if (%_IsSmi(x) && x >= 0) return x;
-  return %NumberToJSUint32(ToNumber(x));
-}
-
-
-// ECMA-262, section 9.5, page 34
-function ToInt32(x) {
-  if (%_IsSmi(x)) return x;
-  return %NumberToJSInt32(ToNumber(x));
-}
-
-
 // ES5, section 9.12
 function SameValue(x, y) {
   if (typeof x != typeof y) return false;
   if (IS_NUMBER(x)) {
     if (NUMBER_IS_NAN(x) && NUMBER_IS_NAN(y)) return true;
     // x is +0 and y is -0 or vice versa.
     if (x === 0 && y === 0 && %_IsMinusZero(x) != %_IsMinusZero(y)) {
       return false;
     }
   }
@@ skipping 101 matching lines @@
 
 $concatIterableToArray = ConcatIterableToArray;
 $defaultNumber = DefaultNumber;
 $defaultString = DefaultString;
 $NaN = %GetRootNaN();
 $nonNumberToNumber = NonNumberToNumber;
 $nonStringToString = NonStringToString;
 $sameValue = SameValue;
 $sameValueZero = SameValueZero;
 $toBoolean = ToBoolean;
-$toInt32 = ToInt32;
 $toInteger = ToInteger;
 $toLength = ToLength;
 $toName = ToName;
 $toNumber = ToNumber;
 $toPositiveInteger = ToPositiveInteger;
 $toPrimitive = ToPrimitive;
 $toString = ToString;
-$toUint32 = ToUint32;
 
 })