[Console] Fixes question input encoding on Windows

src/Symfony/Component/Console/Helper/QuestionHelper.php

@@ -158,6 +158,11 @@ class QuestionHelper extends Helper
         $inputStream = $this->inputStream ?: STDIN;
         $autocomplete = $question->getAutocompleterValues();
 
+        if (\function_exists('sapi_windows_cp_set')) {
+            // Codepage used by cmd.exe on Windows to allow special characters (éàüñ).
+            sapi_windows_cp_set(1252);
+        }
+
         if (null === $autocomplete || !self::$stty || !Terminal::hasSttyAvailable()) {
             $ret = false;
             if ($question->isHidden()) {