Use computed slot names

Author: anba

spec.emu

@@ -266,8 +266,8 @@ contributors: Ujjwal Sharma, Younies Mahmoud
           1. Let _displaySlot_ be the Display Slot value.
           1. Let _valueSlot_ be the Value Slot value.
           1. Let _unit_ be the Unit value.
-          1. Let _style_ be the current value of the _styleSlot_ slot of _durationFormat_.
-          1. Let _nextStyle_ be the current value of the _nextStyleSlot_ slot of _durationFormat_.
+          1. Let _style_ be _durationFormat_.[[<_styleSlot_>]].
+          1. Let _nextStyle_ be _durationFormat_[[<_nextStyleSlot_>]].
           1. Let _nfOpts_ be ! OrdinaryObjectCreate(`null`).
           1. Let _done_ be *false*.
           1. If _unit_ is `"seconds"`, `"milliseconds"`, or `"microseconds"` and _nextStyle_ is `"numeric"`, then
@@ -280,14 +280,14 @@ contributors: Ujjwal Sharma, Younies Mahmoud
               1. Perform ! CreateDataPropertyOrThrow(_nfOpts_, `"minimumFractionDigits"`, _durationFormat_.[[FractionalDigits]]).
               1. Set _done_ to *true*.
           1. Else,
-            1. Let _value_ be the current value of the _valueSlot_ slot of _duration_.
+            1. Let _value_ be _duration_[[<_valueSlot_>]].
           1. If _style_ is `"2-digit"`, then
             1. Perform ! CreateDataPropertyOrThrow(_nfOpts_, `"minimumIntegerDigits"`, `2`).
           1. If _value_ is 0 and _display_ is `"auto"`, then
             1. Skip to the next iteration.
           1. Let _nf_ be ! Construct(%NumberFormat%, « _durationFormat_.[[Locale]], _nfOpts_ »).
           1. Let _dataLocale_ be _durationFormat_.[[DataLocale]].
-          1. Let _dataLocaleData_ be the current value of the _dataLocale_ slot of %DurationFormat%.[[LocaleData]].
+          1. Let _dataLocaleData_ be %DurationFormat%.[[LocaleData]][[<_dataLocale_>]].
           1. If _style_ is `"2-digit"` or `"numeric"`, then
             1. Let _num_ be ! FormatNumeric(_nf_, 𝔽(_value_)).
             1. Append the new Record { [[Type]]: _unit_, [[Value]]: _num_} to the end of _result_.
@@ -298,7 +298,7 @@ contributors: Ujjwal Sharma, Younies Mahmoud
             1. Let _num_ be ! PartitionNumberPattern(_nf_, 𝔽(_value_)).
             1. Let _pr_ be ! Construct(%PluralRules%, « _durationFormat_.[[Locale]] »).
             1. Let _prv_ be ! ResolvePlural(_pr_, 𝔽(_value_)).
-            1. Let _template_ be the current value of the _prv_ slot of the _unit_ slot of the _style_ slot of _dataLocaleData_.[[formats]].
+            1. Let _template_ be _dataLocaleData_.[[formats]][[<_style_>]][[<_unit_>]][[<_prv_>]].
             1. Let _parts_ be ! MakePartsList(_template_, _unit_, _num_).
             1. Let _concat_ be an empty String.
             1. For each element _part_ in _parts_, in List order, do