lang: populate missing return type information

src/pocketmine/lang/BaseLang.php

@@ -105,6 +105,12 @@ class BaseLang{
 		return $this->langName;
 	}
 
+	/**
+	 * @param string   $path
+	 * @param string[] $d reference parameter
+	 *
+	 * @return bool
+	 */
 	protected static function loadLang(string $path, array &$d){
 		if(file_exists($path)){
 			$d = array_map('\stripcslashes', parse_ini_file($path, false, INI_SCANNER_RAW));
@@ -132,6 +138,11 @@ class BaseLang{
 		return $baseText;
 	}
 
+	/**
+	 * @param TextContainer $c
+	 *
+	 * @return string
+	 */
 	public function translate(TextContainer $c){
 		if($c instanceof TranslationContainer){
 			$baseText = $this->internalGet($c->getText());

src/pocketmine/lang/TextContainer.php

@@ -37,6 +37,8 @@ class TextContainer{
 
 	/**
 	 * @param string $text
+	 *
+	 * @return void
 	 */
 	public function setText(string $text){
 		$this->text = $text;

src/pocketmine/lang/TranslationContainer.php

@@ -59,6 +59,8 @@ class TranslationContainer extends TextContainer{
 	/**
 	 * @param int    $i
 	 * @param string $str
+	 *
+	 * @return void
 	 */
 	public function setParameter(int $i, string $str){
 		if($i < 0 or $i > count($this->params)){ //Intended, allow to set the last
@@ -70,6 +72,8 @@ class TranslationContainer extends TextContainer{
 
 	/**
 	 * @param string[] $params
+	 *
+	 * @return void
 	 */
 	public function setParameters(array $params){
 		$i = 0;