Add option to limit export of (large) arrays (to speed up PHPUnit)

[staabm]

goal is to speedup running tests in phpunit with dataproviders with loooots of elements.

---

repro from sebastianbergmann/phpunit#5774 (comment)

PHPUnit 10.5.21 on PHP 8.3.8 (on m1 pro)

vendor/bin/phpunit tests/TokenizerTest.php 
...
Time: 00:31.553, Memory: 374.09 MB

with this PR

Time: 00:01.964, Memory: 293.88 MB

[staabm]

//cc @mvorisek

[staabm]

since we are in the shortenedRecursiveExport method, I think its acceptable to shorten these arrays more agressively.

before this PR running phpunit on a dataprovider with lots of elements resulted in a big wall-of-text description like

PHPUnit 11.2.2 by Sebastian Bergmann and contributors.

Runtime:       PHP 8.3.8
Configuration: /Users/staabm/workspace/exporter/phpunit.xml

................................................................. 65 / 74 ( 87%)
.....F...                                                         74 / 74 (100%)

Time: 00:00.042, Memory: 20.00 MB

There was 1 failure:

1) SebastianBergmann\Exporter\ExporterTest::testShortenedRecursiveExport with data set "big array" (['cast('foo0' as blob)', 'cast('foo1' as blob)', 'cast('foo2' as blob)', 'cast('foo3' as blob)', 'cast('foo4' as blob)', 'cast('foo5' as blob)', 'cast('foo6' as blob)', 'cast('foo7' as blob)', 'cast('foo8' as blob)', 'cast('foo9' as blob)', 'cast('foo10' as blob)', 'cast('foo11' as blob)', 'cast('foo12' as blob)', 'cast('foo13' as blob)', 'cast('foo14' as blob)', 'cast('foo15' as blob)', 'cast('foo16' as blob)', 'cast('foo17' as blob)', 'cast('foo18' as blob)', 'cast('foo19' as blob)', 'cast('foo20' as blob)', 'cast('foo21' as blob)', 'cast('foo22' as blob)', 'cast('foo23' as blob)', 'cast('foo24' as blob)', 'cast('foo25' as blob)', 'cast('foo26' as blob)', 'cast('foo27' as blob)', 'cast('foo28' as blob)', 'cast('foo29' as blob)', 'cast('foo30' as blob)', 'cast('foo31' as blob)', 'cast('foo32' as blob)', 'cast('foo33' as blob)', 'cast('foo34' as blob)', 'cast('foo35' as blob)', 'cast('foo36' as blob)', 'cast('foo37' as blob)', 'cast('foo38' as blob)', 'cast('foo39' as blob)', 'cast('foo40' as blob)', 'cast('foo41' as blob)', 'cast('foo42' as blob)', 'cast('foo43' as blob)', 'cast('foo44' as blob)', 'cast('foo45' as blob)', 'cast('foo46' as blob)', 'cast('foo47' as blob)', 'cast('foo48' as blob)', 'cast('foo49' as blob)', 'cast('foo50' as blob)', 'cast('foo51' as blob)', 'cast('foo52' as blob)', 'cast('foo53' as blob)', 'cast('foo54' as blob)', 'cast('foo55' as blob)', 'cast('foo56' as blob)', 'cast('foo57' as blob)', 'cast('foo58' as blob)', 'cast('foo59' as blob)', 'cast('foo60' as blob)', 'cast('foo61' as blob)', 'cast('foo62' as blob)', 'cast('foo63' as blob)', 'cast('foo64' as blob)', 'cast('foo65' as blob)', 'cast('foo66' as blob)', 'cast('foo67' as blob)', 'cast('foo68' as blob)', 'cast('foo69' as blob)', 'cast('foo70' as blob)', 'cast('foo71' as blob)', 'cast('foo72' as blob)', 'cast('foo73' as blob)', 'cast('foo74' as blob)', 'cast('foo75' as blob)', 'cast('foo76' as blob)', 'cast('foo77' as blob)', 'cast('foo78' as blob)', 'cast('foo79' as blob)', 'cast('foo80' as blob)', 'cast('foo81' as blob)', 'cast('foo82' as blob)', 'cast('foo83' as blob)', 'cast('foo84' as blob)', 'cast('foo85' as blob)', 'cast('foo86' as blob)', 'cast('foo87' as blob)', 'cast('foo88' as blob)', 'cast('foo89' as blob)', 'cast('foo90' as blob)', 'cast('foo91' as blob)', 'cast('foo92' as blob)', 'cast('foo93' as blob)', 'cast('foo94' as blob)', 'cast('foo95' as blob)', 'cast('foo96' as blob)', 'cast('foo97' as blob)', 'cast('foo98' as blob)', 'cast('foo99' as blob)', 'cast('foo100' as blob)', 'cast('foo101' as blob)', 'cast('foo102' as blob)', 'cast('foo103' as blob)', 'cast('foo104' as blob)', 'cast('foo105' as blob)', 'cast('foo106' as blob)', 'cast('foo107' as blob)', 'cast('foo108' as blob)', 'cast('foo109' as blob)', 'cast('foo110' as blob)', 'cast('foo111' as blob)', 'cast('foo112' as blob)', 'cast('foo113' as blob)', 'cast('foo114' as blob)', 'cast('foo115' as blob)', 'cast('foo116' as blob)', 'cast('foo117' as blob)', 'cast('foo118' as blob)', 'cast('foo119' as blob)', 'cast('foo120' as blob)', 'cast('foo121' as blob)', 'cast('foo122' as blob)', 'cast('foo123' as blob)', 'cast('foo124' as blob)', 'cast('foo125' as blob)', 'cast('foo126' as blob)', 'cast('foo127' as blob)', 'cast('foo128' as blob)', 'cast('foo129' as blob)', 'cast('foo130' as blob)', 'cast('foo131' as blob)', 'cast('foo132' as blob)', 'cast('foo133' as blob)', 'cast('foo134' as blob)', 'cast('foo135' as blob)', 'cast('foo136' as blob)', 'cast('foo137' as blob)', 'cast('foo138' as blob)', 'cast('foo139' as blob)', 'cast('foo140' as blob)', 'cast('foo141' as blob)', 'cast('foo142' as blob)', 'cast('foo143' as blob)', 'cast('foo144' as blob)', 'cast('foo145' as blob)', 'cast('foo146' as blob)', 'cast('foo147' as blob)', 'cast('foo148' as blob)', 'cast('foo149' as blob)', 'cast('foo150' as blob)', 'cast('foo151' as blob)', 'cast('foo152' as blob)', 'cast('foo153' as blob)', 'cast('foo154' as blob)', 'cast('foo155' as blob)', 'cast('foo156' as blob)', 'cast('foo157' as blob)', 'cast('foo158' as blob)', 'cast('foo159' as blob)', 'cast('foo160' as blob)', 'cast('foo161' as blob)', 'cast('foo162' as blob)', 'cast('foo163' as blob)', 'cast('foo164' as blob)', 'cast('foo165' as blob)', 'cast('foo166' as blob)', 'cast('foo167' as blob)', 'cast('foo168' as blob)', 'cast('foo169' as blob)', 'cast('foo170' as blob)', 'cast('foo171' as blob)', 'cast('foo172' as blob)', 'cast('foo173' as blob)', 'cast('foo174' as blob)', 'cast('foo175' as blob)', 'cast('foo176' as blob)', 'cast('foo177' as blob)', 'cast('foo178' as blob)', 'cast('foo179' as blob)', 'cast('foo180' as blob)', 'cast('foo181' as blob)', 'cast('foo182' as blob)', 'cast('foo183' as blob)', 'cast('foo184' as blob)', 'cast('foo185' as blob)', 'cast('foo186' as blob)', 'cast('foo187' as blob)', 'cast('foo188' as blob)', 'cast('foo189' as blob)', 'cast('foo190' as blob)', 'cast('foo191' as blob)', 'cast('foo192' as blob)', 'cast('foo193' as blob)', 'cast('foo194' as blob)', 'cast('foo195' as blob)', 'cast('foo196' as blob)', 'cast('foo197' as blob)', 'cast('foo198' as blob)', 'cast('foo199' as blob)', 'cast('foo200' as blob)', 'cast('foo201' as blob)', 'cast('foo202' as blob)', 'cast('foo203' as blob)', 'cast('foo204' as blob)', 'cast('foo205' as blob)', 'cast('foo206' as blob)', 'cast('foo207' as blob)', 'cast('foo208' as blob)', 'cast('foo209' as blob)', 'cast('foo210' as blob)', 'cast('foo211' as blob)', 'cast('foo212' as blob)', 'cast('foo213' as blob)', 'cast('foo214' as blob)', 'cast('foo215' as blob)', 'cast('foo216' as blob)', 'cast('foo217' as blob)', 'cast('foo218' as blob)', 'cast('foo219' as blob)', 'cast('foo220' as blob)', 'cast('foo221' as blob)', 'cast('foo222' as blob)', 'cast('foo223' as blob)', 'cast('foo224' as blob)', 'cast('foo225' as blob)', 'cast('foo226' as blob)', 'cast('foo227' as blob)', 'cast('foo228' as blob)', 'cast('foo229' as blob)', 'cast('foo230' as blob)', 'cast('foo231' as blob)', 'cast('foo232' as blob)', 'cast('foo233' as blob)', 'cast('foo234' as blob)', 'cast('foo235' as blob)', 'cast('foo236' as blob)', 'cast('foo237' as blob)', 'cast('foo238' as blob)', 'cast('foo239' as blob)', 'cast('foo240' as blob)', 'cast('foo241' as blob)', 'cast('foo242' as blob)', 'cast('foo243' as blob)', 'cast('foo244' as blob)', 'cast('foo245' as blob)', 'cast('foo246' as blob)', 'cast('foo247' as blob)', 'cast('foo248' as blob)', 'cast('foo249' as blob)', 'cast('foo250' as blob)', 'cast('foo251' as blob)', 'cast('foo252' as blob)', 'cast('foo253' as blob)', 'cast('foo254' as blob)', 'cast('foo255' as blob)', 'cast('foo256' as blob)', 'cast('foo257' as blob)', 'cast('foo258' as blob)', 'cast('foo259' as blob)', 'cast('foo260' as blob)', 'cast('foo261' as blob)', 'cast('foo262' as blob)', 'cast('foo263' as blob)', 'cast('foo264' as blob)', 'cast('foo265' as blob)', 'cast('foo266' as blob)', 'cast('foo267' as blob)', 'cast('foo268' as blob)', 'cast('foo269' as blob)', 'cast('foo270' as blob)', 'cast('foo271' as blob)', 'cast('foo272' as blob)', 'cast('foo273' as blob)', 'cast('foo274' as blob)', 'cast('foo275' as blob)', 'cast('foo276' as blob)', 'cast('foo277' as blob)', 'cast('foo278' as blob)', 'cast('foo279' as blob)', 'cast('foo280' as blob)', 'cast('foo281' as blob)', 'cast('foo282' as blob)', 'cast('foo283' as blob)', 'cast('foo284' as blob)', 'cast('foo285' as blob)', 'cast('foo286' as blob)', 'cast('foo287' as blob)', 'cast('foo

so I think this is also a DX improvement

[mvorisek]

Completely agree and thank you for this PR!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (b9c7cad) to head (deb644f).
Report is 8 commits behind head on main.

❗ Current head deb644f differs from pull request most recent head 4c25986

Please upload reports for the commit 4c25986 to get more accurate results.

Additional details and impacted files

@@             Coverage Diff             @@
##                main       #59   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
+ Complexity        60        54    -6     
===========================================
  Files              2         1    -1     
  Lines            177       169    -8     
===========================================
- Hits             177       169    -8     

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