Add use input to the pattern function

Author: JoMessina

src/ExpressionLanguage/File.php

@@ -14,7 +14,7 @@ public function __construct(string $name)
             $name,
             function (string $value): string {
                 $pattern = <<<'PHP'
-                    (function () {
+                    (function () use ($input) {
                         $resource = \tmpfile();
                         if ($resource === false) {
                             throw new \RuntimeException('Could not open temporary file.');

src/ExpressionLanguage/TemporaryFile.php

@@ -14,15 +14,15 @@ public function __construct(string $name)
             $name,
             function (string $value): string {
                 $pattern = <<<'PHP'
-                    (function ($data) {
+                    (function ($data) use ($input) {
                         if (!is_string($data)) {
                             return null;
                         }
                         $stream = fopen('php://temp', 'r+');
                         fwrite($stream, $data);
                         fseek($stream, 0, SEEK_SET);
                         return $stream;
-                    })(%s);
+                    })(%s)
                     PHP;
 
                 return sprintf($pattern, $value);