bug symfony#2342 [TwigComponent] Fix directory separator in Debug command (clussiana, smnandre)

This PR was merged into the 2.x branch.

Discussion
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[TwigComponent] Fix directory separator in Debug command

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| Issues        |
| License       | MIT

Component template paths are retrieved by the `SplFileInfo` class, which returns paths containing backslashes on Windows and slashes on other operating systems.

So on Windows environment, the command fails as the component `Card\Card.html.twig` is not formatted into `Card:Card`

Commits
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41d9df0 Fix copy/paste error
3664af5 CS fix
d906c6e fix: replace / by DIRECTORY_SEPARATOR

Author: smnandre

src/TwigComponent/src/Command/TwigComponentDebugCommand.php

@@ -182,12 +182,12 @@ private function findAnonymousComponents(): array
             ->name('*.html.twig')
         ;
         foreach ($finderTemplates as $template) {
-            $component = str_replace('/', ':', $template->getRelativePathname());
+            $component = str_replace(\DIRECTORY_SEPARATOR, ':', $template->getRelativePathname());
             $component = substr($component, 0, -10); // remove file extension ".html.twig"
             $path = $template->getPath();
 
             if ($template->getRelativePath()) {
-                $path = \rtrim(\substr($template->getPath(), 0, -1 * \strlen($template->getRelativePath())), '/');
+                $path = rtrim(substr($template->getPath(), 0, -1 * \strlen($template->getRelativePath())), \DIRECTORY_SEPARATOR);
             }
 
             if (isset($dirs[$path]) && FilesystemLoader::MAIN_NAMESPACE !== $dirs[$path]) {