minor #41869 [Form] better form doc types to support static analysis (Tobion)

This PR was merged into the 4.4 branch.

Discussion
----------

[Form] better form doc types to support static analysis

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | no
| New feature?  | no <!-- please update src/**/CHANGELOG.md files -->
| Deprecations? | no <!-- please update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Tickets       |  <!-- prefix each issue number with "Fix #", no need to create an issue if none exist, explain below instead -->
| License       | MIT
| Doc PR        |

otherwise phpstan will complain in custom FormTypes like

```
class RegistrationFormType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options): void
`````

that it does not know what the iterable $builder and $options are about.

Commits
-------

56900d2b24 [Form] better form doc types to support static analysis

Author: fabpot

FormBuilderInterface.php

@@ -13,6 +13,8 @@
 
 /**
  * @author Bernhard Schussek <[email protected]>
+ *
+ * @extends \Traversable<string, self>
  */
 interface FormBuilderInterface extends \Traversable, \Countable, FormConfigBuilderInterface
 {
@@ -25,6 +27,7 @@ interface FormBuilderInterface extends \Traversable, \Countable, FormConfigBuild
      *
      * @param string|FormBuilderInterface $child
      * @param string|null                 $type
+     * @param array<string, mixed>        $options
      *
      * @return self
      */
@@ -33,8 +36,9 @@ public function add($child, $type = null, array $options = []);
     /**
      * Creates a form builder.
      *
-     * @param string      $name The name of the form or the name of the property
-     * @param string|null $type The type of the form or null if name is a property
+     * @param string               $name    The name of the form or the name of the property
+     * @param string|null          $type    The type of the form or null if name is a property
+     * @param array<string, mixed> $options
      *
      * @return self
      */
@@ -72,7 +76,7 @@ public function has($name);
     /**
      * Returns the children.
      *
-     * @return array
+     * @return array<string, self>
      */
     public function all();
 

FormConfigInterface.php

@@ -229,7 +229,7 @@ public function getAutoInitialize();
     /**
      * Returns all options passed during the construction of the form.
      *
-     * @return array The passed options
+     * @return array<string, mixed> The passed options
      */
     public function getOptions();
 

FormTypeInterface.php

@@ -24,6 +24,8 @@ interface FormTypeInterface
      * This method is called for each type in the hierarchy starting from the
      * top most type. Type extensions can further modify the form.
      *
+     * @param array<string, mixed> $options
+     *
      * @see FormTypeExtensionInterface::buildForm()
      */
     public function buildForm(FormBuilderInterface $builder, array $options);
@@ -38,6 +40,8 @@ public function buildForm(FormBuilderInterface $builder, array $options);
      * This means that you cannot access child views in this method. If you need
      * to do so, move your logic to {@link finishView()} instead.
      *
+     * @param array<string, mixed> $options
+     *
      * @see FormTypeExtensionInterface::buildView()
      */
     public function buildView(FormView $view, FormInterface $form, array $options);
@@ -53,6 +57,8 @@ public function buildView(FormView $view, FormInterface $form, array $options);
      * such logic in this method that actually accesses child views. For everything
      * else you are recommended to implement {@link buildView()} instead.
      *
+     * @param array<string, mixed> $options
+     *
      * @see FormTypeExtensionInterface::finishView()
      */
     public function finishView(FormView $view, FormInterface $form, array $options);