Perform more aggressive time to NaN conversions. Our internal date...

src/macros.py

Index: src/macros.py
===================================================================
--- src/macros.py	(revision 6041)
+++ src/macros.py	(working copy)
@@ -140,15 +140,14 @@
 
 # Limit according to ECMA 262 15.9.1.1
 const MAX_TIME_MS = 8640000000000000;
+# Limit which is MAX_TIME_MS + msPerMonth.
+const MAX_TIME_BEFORE_UTC = 8640002592000000;
 
 # Gets the value of a Date object. If arg is not a Date object
 # a type error is thrown.
 macro DATE_VALUE(arg) = (%_ClassOf(arg) === 'Date' ? %_ValueOf(arg) : ThrowDateTypeError());
 macro DAY(time) = ($floor(time / 86400000));
-macro MONTH_FROM_TIME(time) = (MonthFromTime(time));
-macro DATE_FROM_TIME(time) = (DateFromTime(time));
-macro NAN_OR_DATE_FROM_TIME(time) = (NUMBER_IS_NAN(time) ? time : DATE_FROM_TIME(time));
-macro YEAR_FROM_TIME(time) = (YearFromTime(time));
+macro NAN_OR_DATE_FROM_TIME(time) = (NUMBER_IS_NAN(time) ? time : DateFromTime(time));
 macro HOUR_FROM_TIME(time) = (Modulo($floor(time / 3600000), 24));
 macro MIN_FROM_TIME(time) = (Modulo($floor(time / 60000), 60));
 macro NAN_OR_MIN_FROM_TIME(time) = (NUMBER_IS_NAN(time) ? time : MIN_FROM_TIME(time));