Timothy Flynn e74e8381d5 LibJS: Allow "approximately" results to differ in plural form ...

This is a normative change in the Intl.NumberFormat V3 spec. See:
https://github.com/tc39/proposal-intl-numberformat-v3/commit/08f599b

Note that this didn't seem to actually affect our implementation. The
Unicode spec states:

https://www.unicode.org/reports/tr35/tr35-53/tr35-numbers.html#Plural_Ranges
"If there is no value for a <start,end> pair, the default result is end"

Therefore, our implementation did not have the behavior noted by the
issue this normative change addressed:

    const pr = new Intl.PluralRules("en-US");
    pr.selectRange(1, 1); // Is "other", should be "one"

Our implementation already returned "one" here because there is no such
<start=one, end=one> value in the CLDR for en-US. Thus, we already
returned the end value of "one".

2023-01-30 14:10:07 -05:00

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