minor #20518 [Form] Fix tests to use FQCN (ogizanagi)

This PR was merged into the 2.8 branch.

Discussion
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[Form] Fix tests to use FQCN

| Q             | A
| ------------- | ---
| Branch?       | 2.8
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | no
| Fixed tickets | N/A
| License       | MIT
| Doc PR        | N/A

Fixes an issue while merging 2.7 in upper branches (2cf474e2eb (diff-fbbd0dcfdc8319ceb89c18435e590fd2R234))

Commits
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0d6a60b [Form] Fix tests to use FQCN

src/Symfony/Component/Form/Tests/Extension/Core/Type/TimeTypeTest.php

@@ -233,7 +233,7 @@ class TimeTypeTest extends TestCase
 
     public function testSubmitWithSecondsAndBrowserOmissionSeconds()
     {
-        $form = $this->factory->create('time', null, array(
+        $form = $this->factory->create('Symfony\Component\Form\Extension\Core\Type\TimeType', null, array(
             'model_timezone' => 'UTC',
             'view_timezone' => 'UTC',
             'input' => 'string',