Normative: Fix "smallestUnit" property name for options objects created from string argument

Fixes incorrect property names "_smallestUnit_" -> "smallestUnit" when
creating options objects from a string argument, which was introduced as
a new feature in #1875.

Author: linusg

spec/duration.html

@@ -422,7 +422,7 @@ <h1>Temporal.Duration.prototype.round ( _roundTo_ )</h1>
         1. If Type(_roundTo_) is String, then
           1. Let _paramString_ be _roundTo_.
           1. Set _roundTo_ to ! OrdinaryObjectCreate(*null*).
-          1. Perform ! CreateDataPropertyOrThrow(_roundTo_, *"_smallestUnit_"*, _paramString_).
+          1. Perform ! CreateDataPropertyOrThrow(_roundTo_, *"smallestUnit"*, _paramString_).
         1. Else,
           1. Set _roundTo_ to ? GetOptionsObject(_roundTo_).
         1. Let _smallestUnitPresent_ be *true*.

spec/instant.html

@@ -309,7 +309,7 @@ <h1>Temporal.Instant.prototype.round ( _roundTo_ )</h1>
         1. If Type(_roundTo_) is String, then
           1. Let _paramString_ be _roundTo_.
           1. Set _roundTo_ to ! OrdinaryObjectCreate(*null*).
-          1. Perform ! CreateDataPropertyOrThrow(_roundTo_, *"_smallestUnit_"*, _paramString_).
+          1. Perform ! CreateDataPropertyOrThrow(_roundTo_, *"smallestUnit"*, _paramString_).
         1. Else,
           1. Set _roundTo_ to ? GetOptionsObject(_roundTo_).
         1. Let _smallestUnit_ be ? ToSmallestTemporalUnit(_roundTo_, « *"year"*, *"month"*, *"week"*, *"day"* », *undefined*).

spec/plaindatetime.html

@@ -548,7 +548,7 @@ <h1>Temporal.PlainDateTime.prototype.round ( _roundTo_ )</h1>
         1. If Type(_roundTo_) is String, then
           1. Let _paramString_ be _roundTo_.
           1. Set _roundTo_ to ! OrdinaryObjectCreate(*null*).
-          1. Perform ! CreateDataPropertyOrThrow(_roundTo_, *"_smallestUnit_"*, _paramString_).
+          1. Perform ! CreateDataPropertyOrThrow(_roundTo_, *"smallestUnit"*, _paramString_).
         1. Else,
           1. Set _roundTo_ to ? GetOptionsObject(_roundTo_).
         1. Let _smallestUnit_ be ? ToSmallestTemporalUnit(_roundTo_, « *"year"*, *"month"*, *"week"* », *undefined*).

spec/plaintime.html

@@ -340,7 +340,7 @@ <h1>Temporal.PlainTime.prototype.round ( _roundTo_ )</h1>
         1. If Type(_roundTo_) is String, then
           1. Let _paramString_ be _roundTo_.
           1. Set _roundTo_ to ! OrdinaryObjectCreate(*null*).
-          1. Perform ! CreateDataPropertyOrThrow(_roundTo_, *"_smallestUnit_"*, _paramString_).
+          1. Perform ! CreateDataPropertyOrThrow(_roundTo_, *"smallestUnit"*, _paramString_).
         1. Else,
           1. Set _roundTo_ to ? GetOptionsObject(_roundTo_).
         1. Let _smallestUnit_ be ? ToSmallestTemporalUnit(_roundTo_, « *"year"*, *"month"*, *"week"*, *"day"* », *undefined*).

spec/zoneddatetime.html

@@ -777,7 +777,7 @@ <h1>Temporal.ZonedDateTime.prototype.round ( _roundTo_ )</h1>
         1. If Type(_roundTo_) is String, then
           1. Let _paramString_ be _roundTo_.
           1. Set _roundTo_ to ! OrdinaryObjectCreate(*null*).
-          1. Perform ! CreateDataPropertyOrThrow(_roundTo_, *"_smallestUnit_"*, _paramString_).
+          1. Perform ! CreateDataPropertyOrThrow(_roundTo_, *"smallestUnit"*, _paramString_).
         1. Else,
           1. Set _roundTo_ to ? GetOptionsObject(_roundTo_).
         1. Let _smallestUnit_ be ? ToSmallestTemporalUnit(_roundTo_, « *"year"*, *"month"*, *"week"* », *undefined*).