populate missing array value types in tile namespace

src/pocketmine/tile/Banner.php

@@ -164,6 +164,8 @@ class Banner extends Spawnable implements Nameable{
 
 	/**
 	 * Returns the data of a pattern with the given ID.
+	 *
+	 * @return mixed[]
 	 */
 	public function getPatternData(int $patternId) : array{
 		if(!$this->patternExists($patternId)){

src/pocketmine/tile/Sign.php

@@ -42,6 +42,9 @@ class Sign extends Spawnable{
 	public const TAG_TEXT_BLOB = "Text";
 	public const TAG_TEXT_LINE = "Text%d"; //sprintf()able
 
+	/**
+	 * @return string[]
+	 */
 	private static function fixTextBlob(string $blob) : array{
 		return array_slice(array_pad(explode("\n", $blob), 4, ""), 0, 4);
 	}

src/pocketmine/tile/Tile.php

@@ -115,6 +115,8 @@ abstract class Tile extends Position{
 	}
 
 	/**
+	 * @param string[] $saveNames
+	 *
 	 * @throws \ReflectionException
 	 */
 	public static function registerTile(string $className, array $saveNames = []) : bool{