This PR was squashed before being merged into the 2.7 branch (closes#24814).
Discussion
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[Intl] Make intl-data tests pass and save language aliases again
| Q | A
| ------------- | ---
| Branch? | 2.7
| Bug fix? | yes
| New feature? | no
| BC breaks? | no
| Deprecations? | no
| Tests pass? | yes
| Fixed tickets | -
| License | MIT
| Doc PR | -
Due to changes in ICU 5.5 aliases were not being saved since that version.
Commits
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661a4b6 [Intl] Make intl-data tests pass and save language aliases again
This removes the unused use statements which were not catched by
PHP-CS-Fixer because of string occurences. It also fixes some invalid
phpdoc (scalar is not recognized as a valid type for instance).