This PR was merged into the 4.2-dev branch.Discussion----------[Intl] Blacklist invalid languages| Q             | A| ------------- | ---| Branch?       | master| Bug fix?      | yes?| New feature?  | yes?| BC breaks?    | no?| Deprecations? | no| Tests pass?   | yes    <!-- please add some, will be required by reviewers -->| Fixed tickets | #...   <!-- #-prefixed issue number(s), if any -->| License       | MIT| Doc PR        | symfony/symfony-docs#... <!-- required for new features -->seehttps://en.wikipedia.org/wiki/ISO_639-3#Special_codesCommits-------4f5404b [Intl] Blacklist invalid languages

This PR was merged into the 3.4 branch.Discussion----------[Intl] Add compile binary| Q             | A| ------------- | ---| Branch?       | 3.4| Bug fix?      | no| New feature?  | no-ish| BC breaks?    | no     <!-- seehttps://symfony.com/bc -->| Deprecations? | no| Tests pass?   | yes    <!-- please add some, will be required by reviewers -->| Fixed tickets | #...   <!-- #-prefixed issue number(s), if any -->| License       | MIT| Doc PR        | symfony/symfony-docs#... <!-- required for new features -->Compile the Intl data by invoking a single command, and make it work out-of-the-box. (Split from#28831)```bash$ src/Symfony/Component/Intl/Resources/bin/compile```run in repository root because ofhttps://github.com/symfony/symfony/blob/b7e798ef745a09ca2e76fba4afad0a04fcbd9195/src/Symfony/Component/Intl/Data/Generator/LocaleDataGenerator.php#L1413.4 is ok, 4.2 is not because of#28833 but new locales are introduced inhttps://github.com/symfony/symfony/pull/28977/files#diff-f52da32e1ee6b93598814090d0749aa6R1So as long as 3.4 is supported, but branches above add filters etc. during generation we're risking this discrepancy. I suggest after merge in upper branches to re-run `compile` (potential for automating, but run if needed :))Commits-------426b92f [Intl] Add compile binary