Tests/AcceptTest: use named data sets

With non-named data sets, when a test fails, PHPUnit will display the number of the test which failed.

With tests which have a _lot_ of data sets, this makes it _interesting_ (and time-consuming) to debug those, as one now has to figure out which of the data sets in the data provider corresponds to that number.

Using named data sets makes debugging failing tests more straight forward as PHPUnit will display the data set name instead of the number.
Using named data sets also documents what exactly each data set is testing.

Includes making the data type in the docblocks more specific.

Author: jrfnl

tests/Core/Filters/Filter/AcceptTest.php

@@ -43,8 +43,8 @@ public static function initializeConfigAndRuleset()
     /**
      * Test filtering a file list for excluded paths.
      *
-     * @param array $inputPaths     List of file paths to be filtered.
-     * @param array $expectedOutput Expected filtering result.
+     * @param array<string> $inputPaths     List of file paths to be filtered.
+     * @param array<string> $expectedOutput Expected filtering result.
      *
      * @dataProvider dataExcludePatterns
      *
@@ -65,34 +65,34 @@ public function testExcludePatterns($inputPaths, $expectedOutput)
      *
      * @see testExcludePatterns
      *
-     * @return array
+     * @return array<string, array<string, array<string>>>
      */
     public function dataExcludePatterns()
     {
         $testCases = [
             // Test top-level exclude patterns.
-            [
-                [
+            'Non-sniff specific path based excludes from ruleset and command line are respected and don\'t filter out too much' => [
+                'inputPaths'     => [
                     '/path/to/src/Main.php',
                     '/path/to/src/Something/Main.php',
                     '/path/to/src/Somethingelse/Main.php',
                     '/path/to/src/SomethingelseEvenLonger/Main.php',
                     '/path/to/src/Other/Main.php',
                 ],
-                [
+                'expectedOutput' => [
                     '/path/to/src/Main.php',
                     '/path/to/src/SomethingelseEvenLonger/Main.php',
                 ],
             ],
 
             // Test ignoring standard/sniff specific exclude patterns.
-            [
-                [
+            'Filter should not act on standard/sniff specific exclude patterns'                                                 => [
+                'inputPaths'     => [
                     '/path/to/src/generic-project/Main.php',
                     '/path/to/src/generic/Main.php',
                     '/path/to/src/anything-generic/Main.php',
                 ],
-                [
+                'expectedOutput' => [
                     '/path/to/src/generic-project/Main.php',
                     '/path/to/src/generic/Main.php',
                     '/path/to/src/anything-generic/Main.php',