Editorial: Rename GetIANATimeZoneNextTransition to GetNamedTimeZoneNextTransition

This rename, as well as the reordering of the two arguments, is for
consistency with now-existing ECMA-262 operations such as
GetNamedTimeZoneEpochNanoseconds.

Author: ptomato

polyfill/lib/ecmascript.mjs

@@ -2240,7 +2240,7 @@ export const ES = ObjectAssign({}, ES2022, {
     const { year, month, day, hour, minute, second } = ES.GetFormatterParts(id, epochMilliseconds);
     return ES.BalanceISODateTime(year, month, day, hour, minute, second, millisecond, microsecond, nanosecond);
   },
-  GetIANATimeZoneNextTransition: (epochNanoseconds, id) => {
+  GetNamedTimeZoneNextTransition: (id, epochNanoseconds) => {
     const uppercap = ES.SystemUTCEpochNanoSeconds().plus(DAY_NANOS.multiply(366));
     let leftNanos = epochNanoseconds;
     let leftOffsetNs = ES.GetNamedTimeZoneOffsetNanoseconds(id, leftNanos);

polyfill/lib/timezone.mjs

@@ -122,7 +122,7 @@ export class TimeZone {
 
     let epochNanoseconds = GetSlot(startingPoint, EPOCHNANOSECONDS);
     const Instant = GetIntrinsic('%Temporal.Instant%');
-    epochNanoseconds = ES.GetIANATimeZoneNextTransition(epochNanoseconds, id);
+    epochNanoseconds = ES.GetNamedTimeZoneNextTransition(id, epochNanoseconds);
     return epochNanoseconds === null ? null : new Instant(epochNanoseconds);
   }
   getPreviousTransition(startingPoint) {

spec/timezone.html

@@ -271,7 +271,7 @@ <h1>Temporal.TimeZone.prototype.getNextTransition ( _startingPoint_ )</h1>
         1. Perform ? RequireInternalSlot(_timeZone_, [[InitializedTemporalTimeZone]]).
         1. Set _startingPoint_ to ? ToTemporalInstant(_startingPoint_).
         1. If _timeZone_.[[OffsetNanoseconds]] is not *undefined*, return *null*.
-        1. Let _transition_ be GetIANATimeZoneNextTransition(_startingPoint_.[[Nanoseconds]], _timeZone_.[[Identifier]]).
+        1. Let _transition_ be GetNamedTimeZoneNextTransition(_timeZone_.[[Identifier]], _startingPoint_.[[Nanoseconds]]).
         1. If _transition_ is *null*, return *null*.
         1. Return ! CreateTemporalInstant(_transition_).
       </emu-alg>
@@ -424,9 +424,9 @@ <h1>
 
     <emu-clause id="sec-temporal-getianatimezonenexttransition" type="implementation-defined abstract operation">
       <h1>
-        GetIANATimeZoneNextTransition (
-          _epochNanoseconds_: a BigInt,
+        GetNamedTimeZoneNextTransition (
           _timeZoneIdentifier_: a String,
+          _epochNanoseconds_: a BigInt,
         ): a BigInt or *null*
       </h1>
       <dl class="header">
@@ -436,7 +436,7 @@ <h1>
         The operation returns *null* if no such transition exists for which _t_ &le; ℤ(nsMaxInstant).
       </p>
       <p>
-        Given the same values of _epochNanoseconds_ and _timeZoneIdentifier_, the result must be the same for the lifetime of the surrounding agent.
+        Given the same values of _timeZoneIdentifier_ and _epochNanoseconds_, the result must be the same for the lifetime of the surrounding agent.
       </p>
     </emu-clause>