…s used (yceruto)

This PR was merged into the 4.2-dev branch.

Discussion
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[OptionsResolver] Trigger deprecation only if the option is used

| Q             | A
| ------------- | ---
| Branch?       | master
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #28848
| License       | MIT
| Doc PR        | symfony/symfony-docs#10496

It's true that showing a deprecation message when the option is not used is a bit annoying and it would be heavy to get rid of it.

Now, a deprecated option is triggered only when it's provided by the user or each time is being called from a lazy evaluation (except for deprecations based on the value, they're triggered only when provided by the user).

Commits
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1af23c9 [OptionsResolver] Trigger deprecation only if the option is used

This PR was merged into the 4.2-dev branch.

Discussion
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[Form] Deprecate TimezoneType regions option

| Q             | A
| ------------- | ---
| Branch?       | master
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no     <!-- see https://symfony.com/bc -->
| Deprecations? | yes
| Tests pass?   | yes    <!-- please add some, will be required by reviewers -->
| Fixed tickets | #28848
| License       | MIT
| Doc PR        | symfony/symfony-docs#... <!-- required for new features -->

I know i've added this option myself in 4.1, but given my recent development for #28624 i realized it's an opinionated feaure, which can/should be solved on user-side (`choice_filter/choice_loader` and/or `group_by`).

- blocks translations as we dont have them (see #28831)
- blocks possibility of switching to Intl zones which doesnt really have this filter feature (see #28836)

~While at it, i solved a few issues with `OptionsResolver` that is able to deprecate options as of 4.2 also.~ Fixed in #28878

- when resolved trigger the deprecation
- allow to opt-out from triggering the deprecation
- dont trigger deprecation for default values (only given ones)

Commits
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5cb532d [Form] Deprecate TimezoneType regions option

…on (yceruto)

This PR was merged into the master branch.

Discussion
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[OptionsResolver] Add some notes about trigger deprecation

Updates according to symfony/symfony#28878

Commits
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bb4861b Add some notes about trigger deprecation

…ons::offsetGet() (nicolas-grekas)

This PR was submitted for the 4.3 branch but it was merged into the 4.2 branch instead (closes #31950).

Discussion
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[OptionsResolver] fix adding $triggerDeprecation to Options::offsetGet()

| Q             | A
| ------------- | ---
| Branch?       | 4.3
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

This has been added by @yceruto in #28878 but it doesn't make sense to me: the interface has no concept if deprecation (`OptionsResolver` has!)

Commits
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adc7e6a [OptionsResolver] fix adding $triggerDeprecation to Options::offsetGet()

…ruto)

This PR was squashed before being merged into the 4.2 branch (closes #11704).

Discussion
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[OptionsResolver] Add note about deprecated options

Missing piece related to symfony/symfony#28878

Commits
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aaac426 [OptionsResolver] Add note about deprecated options