This PR was merged into the 4.4 branch.

Discussion
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Fix deprecations on PHP 8.2

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       | On the road to #44282
| License       | MIT
| Doc PR        | -

Commits
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ca56620 Fix deprecations on PHP 8.2

…sh ReflectionExtractor (derrabus)

This PR was merged into the 4.4 branch.

Discussion
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[PropertyInfo] Make sure nested composite types do not crash ReflectionExtractor

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       | Part of #44282
| License       | MIT
| Doc PR        | N/A

A composite type like `(\Traversable&\Countable)|null` which is allowed in PHP 8.2 currently causes a fatal error in `ReflectionExtractor` because of a call to an undefined function. This PR fixes it by making `ReflectionExtractor` report that it could not extract any types.

Implementing full support for composite types to the extent that PHP 8.2 supports them would not be too difficult, but it would probably not pass as a bugfix. Once this is merged up, I'll prepare a PR for the 6.2 branch implementing full support.

Commits
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f146e72 Make sure nested composite types do not crash ReflectionExtractor

… syntax (derrabus)

This PR was merged into the 4.4 branch.

Discussion
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[FrameworkBundle] Fix tests that use deprecated callable syntax

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       | Part of #44282
| License       | MIT
| Doc PR        | N/A

FrameworkBundle's tests currently fail because they use a deprecated way to referencing a callable: `[Foo::class, 'parent::bar']`. This PR moves this one fixture into a separate test with ``@group` legacy`.

Commits
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e95bd95 Fix tests that use deprecated callable syntax

…utowire composite types (derrabus)

This PR was merged into the 4.4 branch.

Discussion
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[DependencyInjection] Fail gracefully when attempting to autowire composite types

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       | Part of #44282
| License       | MIT
| Doc PR        | N/A

Symfony 4.4 does not support autowiring union types. Unfortunately, we run into a fatal error when autowiring is attempted for a parameter with an intersection type nested into a union (`(A&B)|C`). Ironically, the error occurs while we try to generate a nice exception message.

This PR fixes this, so the developer gets a nice exception message about the parameter that cannot be autowired.

For nullable unions however, `null` is injected. This already was the case for `A|null` and it works out of the box for `(A&B)|null`. I've added a test case that covers this case.

Commits
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2543091 Fail gracefully when attempting to autowire composite types

… union types (derrabus)

This PR was merged into the 4.4 branch.

Discussion
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[VarDumper] Add a test case for nesting intersection and union types

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Tickets       | Part of #44282
| License       | MIT
| Doc PR        | N/A

I've added a test case to verify that VarDumper can handler an intersection type inside a union type.

Commits
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cdd5c5b [VarDumper] Add a test case for nesting intersection and union types