[CLEANUP] Reorder methods in DeclarationBlockTest (#1434)

Move the private helper methods to the end, as they are used in multiple tests
both above and below their current location.

Author: JakeQZ

tests/Unit/RuleSet/DeclarationBlockTest.php

@@ -376,32 +376,6 @@ public function parseConsumesToEofIfNoClosingBraceAfterInvalidSelector(
         self::assertTrue($parserState->isEnd());
     }
 
-    /**
-     * @return array<string>
-     */
-    private static function getSelectorsAsStrings(DeclarationBlock $declarationBlock): array
-    {
-        return \array_map(
-            static function (Selector $selectorObject): string {
-                return $selectorObject->getSelector();
-            },
-            $declarationBlock->getSelectors()
-        );
-    }
-
-    /**
-     * @return list<string>
-     */
-    private static function getCommentsAsStrings(DeclarationBlock $declarationBlock): array
-    {
-        return \array_map(
-            static function (Comment $comment): string {
-                return $comment->getComment();
-            },
-            $declarationBlock->getComments()
-        );
-    }
-
     /**
      * @test
      */
@@ -560,4 +534,30 @@ public function setSelectorsThrowsExceptionWithInvalidSelector(string $selector)
 
         $subject->setSelectors($selector);
     }
+
+    /**
+     * @return array<string>
+     */
+    private static function getSelectorsAsStrings(DeclarationBlock $declarationBlock): array
+    {
+        return \array_map(
+            static function (Selector $selectorObject): string {
+                return $selectorObject->getSelector();
+            },
+            $declarationBlock->getSelectors()
+        );
+    }
+
+    /**
+     * @return list<string>
+     */
+    private static function getCommentsAsStrings(DeclarationBlock $declarationBlock): array
+    {
+        return \array_map(
+            static function (Comment $comment): string {
+                return $comment->getComment();
+            },
+            $declarationBlock->getComments()
+        );
+    }
 }