Merge 6168:6800 from bleeding_edge to experimental/gc branch.

src/date.js

 // Copyright 2006-2008 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 63 matching lines @@
       + FLOOR((year-1601)/400);
 }
 
 
 function TimeFromYear(year) {
   return msPerDay * DayFromYear(year);
 }
 
 
 function InLeapYear(time) {
-  return DaysInYear(YearFromTime(time)) == 366 ? 1 : 0;
-}
-
-
-function DayWithinYear(time) {
-  return DAY(time) - DayFromYear(YearFromTime(time));
+  return DaysInYear(YearFromTime(time)) - 365;  // Returns 1 or 0.
 }
 
 
 // ECMA 262 - 15.9.1.9
 function EquivalentYear(year) {
   // Returns an equivalent year in the range [2008-2035] matching
   // - leap year.
   // - week day of first day.
   var time = TimeFromYear(year);
   var recent_year = (InLeapYear(time) == 0 ? 1967 : 1956) +
@@ skipping 498 matching lines @@
 function DateToTimeString() {
   var t = DATE_VALUE(this);
   if (NUMBER_IS_NAN(t)) return kInvalidDate;
   var time_zone_string = LocalTimezoneString(t);  // May update local offset.
   return TimeString(LocalTimeNoCheck(t)) + time_zone_string;
 }
 
 
 // ECMA 262 - 15.9.5.5
 function DateToLocaleString() {
-  return DateToString.call(this);
+  return %_CallFunction(this, DateToString);
 }
 
 
 // ECMA 262 - 15.9.5.6
 function DateToLocaleDateString() {
   var t = DATE_VALUE(this);
   if (NUMBER_IS_NAN(t)) return kInvalidDate;
   return LongDateString(LocalTimeNoCheck(t));
 }
 
@@ skipping 347 matching lines @@
 
 
 // ECMA 262 - B.2.6
 //
 // Notice that this does not follow ECMA 262 completely.  ECMA 262
 // says that toGMTString should be the same Function object as
 // toUTCString.  JSC does not do this, so for compatibility we do not
 // do that either.  Instead, we create a new function whose name
 // property will return toGMTString.
 function DateToGMTString() {
-  return DateToUTCString.call(this);
+  return %_CallFunction(this, DateToUTCString);
 }
 
 
 function PadInt(n, digits) {
   if (digits == 1) return n;
   return n < MathPow(10, digits - 1) ? '0' + PadInt(n, digits - 1) : n;
 }
 
 
 function DateToISOString() {
@@ skipping 112 matching lines @@
     "toGMTString", DateToGMTString,
     "toUTCString", DateToUTCString,
     "getYear", DateGetYear,
     "setYear", DateSetYear,
     "toISOString", DateToISOString,
     "toJSON", DateToJSON
   ));
 }
 
 SetupDate();