feature #30664 [Finder] Get filename without extension (antonch1989)

This PR was squashed before being merged into the 4.3-dev branch (closes #30664).

Discussion
----------

[Finder] Get filename without extension

| Q             | A
| ------------- | ---
| Branch?       | master
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #30655
| License       | MIT
| Doc PR        |

Commits
-------

821e55ab80 [Finder] Get filename without extension

src/Symfony/Component/Finder/SplFileInfo.php

@@ -57,6 +57,13 @@ class SplFileInfo extends \SplFileInfo
         return $this->relativePathname;
     }
 
+    public function getFilenameWithoutExtension(): string
+    {
+        $filename = $this->getFilename();
+
+        return \pathinfo($filename, PATHINFO_FILENAME);
+    }
+
     /**
      * Returns the contents of the file.
      *

src/Symfony/Component/Finder/Tests/FinderTest.php

@@ -1007,6 +1007,40 @@ class FinderTest extends Iterator\RealIteratorTestCase
         $this->assertEquals($ref, $paths);
     }
 
+    public function testGetFilenameWithoutExtension()
+    {
+        $finder = $this->buildFinder()->in(self::$tmpDir)->sortByName();
+
+        $fileNames = [];
+
+        foreach ($finder as $file) {
+            $fileNames[] = $file->getFilenameWithoutExtension();
+        }
+
+        $ref = [
+            'test',
+            'toto',
+            'test',
+            'foo',
+            'bar',
+            'foo bar',
+            'qux',
+            'baz_100_1',
+            'baz_1_2',
+            'qux_0_1',
+            'qux_1000_1',
+            'qux_1002_0',
+            'qux_10_2',
+            'qux_12_0',
+            'qux_2_0',
+        ];
+
+        sort($fileNames);
+        sort($ref);
+
+        $this->assertEquals($ref, $fileNames);
+    }
+
     public function testAppendWithAFinder()
     {
         $finder = $this->buildFinder();