Editorial: Validate array length using SameValueZero (#2460)

spec.html

@@ -13728,7 +13728,7 @@ <h1>
           1. Let _newLenDesc_ be a copy of _Desc_.
           1. [id="step-arraysetlength-newlen"] Let _newLen_ be ? ToUint32(_Desc_.[[Value]]).
           1. [id="step-arraysetlength-numberlen"] Let _numberLen_ be ? ToNumber(_Desc_.[[Value]]).
-          1. If _newLen_ is not the same value as _numberLen_, throw a *RangeError* exception.
+          1. If SameValueZero(_newLen_, _numberLen_) is *false*, throw a *RangeError* exception.
           1. Set _newLenDesc_.[[Value]] to _newLen_.
           1. Let _oldLenDesc_ be OrdinaryGetOwnProperty(_A_, *"length"*).
           1. Assert: ! IsDataDescriptor(_oldLenDesc_) is *true*.
@@ -35206,7 +35206,7 @@ <h1>Array ( ..._values_ )</h1>
               1. Let _intLen_ be *1*<sub>𝔽</sub>.
             1. Else,
               1. Let _intLen_ be ! ToUint32(_len_).
-              1. If _intLen_ is not the same value as _len_, throw a *RangeError* exception.
+              1. If SameValueZero(_intLen_, _len_) is *false*, throw a *RangeError* exception.
             1. Perform ! Set(_array_, *"length"*, _intLen_, *true*).
             1. Return _array_.
           1. Else,