bug #25816 Problem in phar see mergerequest #25579 (betzholz)

This PR was squashed before being merged into the 2.7 branch (closes #25816).

Discussion
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Problem in phar see mergerequest #25579

| Q             | A
| ------------- | ---
| Branch?       | 2.7
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #... <!-- #-prefixed issue number(s), if any -->
| License       | MIT
| Doc PR        | symfony/symfony-docs#... <!--highly recommended for new features-->

If packed into phar the old version creates path like 'file:///phar%3A/'. see symfony/symfony#25579

Commits
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3e0c8ffb43 Problem in phar see mergerequest #25579

Author: fabpot

Loader/XliffFileLoader.php

@@ -129,15 +129,19 @@ private function parseFile($file)
 
         $location = str_replace('\\', '/', __DIR__).'/schema/dic/xliff-core/xml.xsd';
         $parts = explode('/', $location);
+        $locationstart = 'file:///';
         if (0 === stripos($location, 'phar://')) {
             $tmpfile = tempnam(sys_get_temp_dir(), 'sf2');
             if ($tmpfile) {
                 copy($location, $tmpfile);
                 $parts = explode('/', str_replace('\\', '/', $tmpfile));
+            } else {
+                array_shift($parts);
+                $locationstart = 'phar:///';
             }
         }
         $drive = '\\' === DIRECTORY_SEPARATOR ? array_shift($parts).'/' : '';
-        $location = 'file:///'.$drive.implode('/', array_map('rawurlencode', $parts));
+        $location = $locationstart.$drive.implode('/', array_map('rawurlencode', $parts));
 
         $source = file_get_contents(__DIR__.'/schema/dic/xliff-core/xliff-core-1.2-strict.xsd');
         $source = str_replace('http://www.w3.org/2001/xml.xsd', $location, $source);