change from ? to ! in abs and negate

[FrankYFTang]

I do not believe it will throw in these two calls

[codecov]

Codecov Report

Merging #1698 (924b08c) into main (00c28d2) will decrease coverage by 22.13%.
The diff coverage is n/a.

❗ Current head 924b08c differs from pull request most recent head f1ddc1c. Consider uploading reports for the commit f1ddc1c to get more accurate results

@@             Coverage Diff             @@
##             main    #1698       +/-   ##
===========================================
- Coverage   95.03%   72.89%   -22.14%     
===========================================
  Files          19       18        -1     
  Lines       10785     4840     -5945     
  Branches     1725     1058      -667     
===========================================
- Hits        10249     3528     -6721     
- Misses        523     1030      +507     
- Partials       13      282      +269     

Flag	Coverage Δ
test262	72.89% <ø> (ø)
tests	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
polyfill/lib/calendar.mjs	23.22% <0.00%> (-71.15%)	⬇️
polyfill/lib/intl.mjs	67.46% <0.00%> (-32.54%)	⬇️
polyfill/lib/instant.mjs	79.13% <0.00%> (-15.31%)	⬇️
polyfill/lib/plainmonthday.mjs	79.01% <0.00%> (-14.14%)	⬇️
polyfill/lib/plainyearmonth.mjs	83.42% <0.00%> (-12.99%)	⬇️
polyfill/lib/ecmascript.mjs	82.79% <0.00%> (-12.28%)	⬇️
polyfill/lib/plaindatetime.mjs	85.14% <0.00%> (-12.17%)	⬇️
polyfill/lib/timezone.mjs	81.66% <0.00%> (-11.80%)	⬇️
polyfill/lib/zoneddatetime.mjs	89.41% <0.00%> (-8.99%)	⬇️
polyfill/lib/duration.mjs	90.38% <0.00%> (-7.70%)	⬇️
... and 7 more

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[ptomato]

Agreed.