fix(ProjectDetection): Ignore directory names when detecting the Drupal core version (#3097367)

coder_sniffer/DrupalPractice/Project.php

@@ -94,6 +94,14 @@ class Project
                 $infoFiles = glob("$dir/*.info");
             }
 
+            // Filter out directories.
+            $infoFiles = array_filter(
+                $infoFiles,
+                function ($fileName) {
+                    return is_file($fileName);
+                }
+            );
+
             // Go one directory up if we do not find an info file here.
             $dir = dirname($dir);
         } while (empty($infoFiles) === true && $dir !== dirname($dir));

coder_sniffer/DrupalPractice/Test/ProjectDetection/ProjectUnitTest.php

@@ -111,6 +111,10 @@ class ProjectUnitTest extends TestCase
                 'invalid',
                 8,
             ],
+            [
+                __DIR__.'/directory.info/test.php',
+                8,
+            ],
         ];
 
     }//end coreVersionProvider()

coder_sniffer/DrupalPractice/Test/ProjectDetection/directory.info/test.php

+<?php
+
+/**
+ * Intentionally empty.
+ */