Editorial: Handle too large inputs early in UTC

Return `NaN` if `t` exceeds the "local time value" range, because
operations called within `UTC` expect their arguments to be "local time
values" and not arbitrarily large integers.

Author: anba

spec.html

@@ -33115,6 +33115,7 @@ <h1>
         </dl>
         <emu-alg>
           1. If _t_ is not finite, return *NaN*.
+          1. If abs(ℝ(_t_)) ≥ 8.64 × 10<sup>15</sup> + ℝ(msPerDay), return *NaN*.
           1. Let _systemTimeZoneIdentifier_ be SystemTimeZoneIdentifier().
           1. If IsTimeZoneOffsetString(_systemTimeZoneIdentifier_) is *true*, then
             1. Let _offsetNs_ be ParseTimeZoneOffsetString(_systemTimeZoneIdentifier_).