Merge pull request #86 from syg/convert-ta-with-value-first

Convert value in TypedArray#with before the copy loop

spec.html

@@ -471,22 +471,19 @@ <h1>%TypedArray%.prototype.with ( _index_, _value_ )</h1>
                         1. Let _relativeIndex_ be ? ToIntegerOrInfinity(_index_).
                         1. If _relativeIndex_ &ge; 0, let _actualIndex_ be _relativeIndex_.
                         1. Else, let _actualIndex_ be _len_ + _relativeIndex_.
+                        1. If _O_.[[ContentType]] is ~BigInt~, set _value_ to ? ToBigInt(_value_).
+                        1. Else, set _value_ to ? ToNumber(_value_).
                         1. If ! IsValidIntegerIndex(_O_, 𝔽(_actualIndex_)) is *false*, throw a *RangeError* exception.
                         1. Let _A_ be ? TypedArrayCreateSameType(_O_, &laquo; 𝔽(_len_) &raquo;).
                         1. Let _k_ be 0.
                         1. Repeat, while _k_ &lt; _len_,
                             1. Let _Pk_ be ! ToString(𝔽(_k_)).
-                            1. If _k_ is _actualIndex_, then
-                                1. [id="step-typedarray-with-set"] Perform ? Set(_A_, _Pk_, _value_, *true*).
-                            1. Else,
-                                1. Let _fromValue_ be ! Get(_O_, _Pk_).
-                                1. Perform ! Set(_A_, _Pk_, _fromValue_, *true*).
+                            1. If _k_ is _actualIndex_, let _fromValue_ be _value_.
+                            1. Else, let _fromValue_ be ! Get(_O_, _Pk_).
+                            1. Perform ! Set(_A_, _Pk_, _fromValue_, *true*).
                             1. Set _k_ to _k_ + 1.
                         1. Return _A_.
                     </emu-alg>
-                    <emu-note>
-                        Step <emu-xref href="#step-typedarray-with-set"></emu-xref> may return an abrupt completion because _value_ is a value of any ECMAScript language type and is passed to ToBigInt or ToNumber.
-                    </emu-note>
                 </emu-clause>
             </emu-clause>
         </emu-clause>