fix a return type hint
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@ -235,9 +235,9 @@ class FormBuilder extends FormConfigBuilder implements \IteratorAggregate, FormB
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}
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/**
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* Converts an unresolved child into a {@link FormBuilder} instance.
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* Converts an unresolved child into a {@link FormBuilderInterface} instance.
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*/
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private function resolveChild(string $name): self
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private function resolveChild(string $name): FormBuilderInterface
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{
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$info = $this->unresolvedChildren[$name];
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$child = $this->create($name, $info['type'], $info['options']);
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@ -13,7 +13,9 @@ namespace Symfony\Component\Form\Tests;
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use PHPUnit\Framework\TestCase;
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use Symfony\Component\Form\ButtonBuilder;
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use Symfony\Component\Form\Extension\Core\Type\SubmitType;
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use Symfony\Component\Form\FormBuilder;
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use Symfony\Component\Form\FormFactoryBuilder;
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use Symfony\Component\Form\SubmitButtonBuilder;
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class FormBuilderTest extends TestCase
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@ -228,6 +230,14 @@ class FormBuilderTest extends TestCase
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$this->assertEmpty($unresolvedChildren->getValue($config));
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}
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public function testGetButtonBuilderBeforeExplicitlyResolvingAllChildren()
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{
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$builder = new FormBuilder('name', null, $this->dispatcher, (new FormFactoryBuilder())->getFormFactory());
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$builder->add('submit', SubmitType::class);
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$this->assertInstanceOf(ButtonBuilder::class, $builder->get('submit'));
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}
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private function getFormBuilder($name = 'name')
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{
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$mock = $this->getMockBuilder('Symfony\Component\Form\FormBuilder')
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