minor #14121 CS: Pre incrementation/decrementation should be used if possible (gharlan)

This PR was merged into the 2.3 branch.

Discussion
----------

CS: Pre incrementation/decrementation should be used if possible

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | n/a
| License       | MIT
| Doc PR        | n/a

Fixes provided by new fixer: PHP-CS-Fixer/PHP-CS-Fixer#1113

If this pr is merged I would change the level of the fixer to `symfony`.

Commits
-------

c5123d6 CS: Pre incrementation/decrementation should be used if possible

Author: fabpot

Command/ContainerDebugCommand.php

@@ -143,7 +143,7 @@ protected function validateInput(InputInterface $input)
         $optionsCount = 0;
         foreach ($options as $option) {
             if ($input->getOption($option)) {
-                $optionsCount++;
+                ++$optionsCount;
             }
         }
 

Templating/Helper/CodeHelper.php

@@ -135,7 +135,7 @@ public function fileExcerpt($file, $line)
             $content = preg_split('#<br />#', $code);
 
             $lines = array();
-            for ($i = max($line - 3, 1), $max = min($line + 3, count($content)); $i <= $max; $i++) {
+            for ($i = max($line - 3, 1), $max = min($line + 3, count($content)); $i <= $max; ++$i) {
                 $lines[] = '<li'.($i == $line ? ' class="selected"' : '').'><code>'.self::fixCodeMarkup($content[$i - 1]).'</code></li>';
             }
 

Translation/PhpExtractor.php

@@ -148,7 +148,7 @@ protected function parseTokens($tokens, MessageCatalogue $catalog)
     {
         $tokenIterator = new \ArrayIterator($tokens);
 
-        for ($key = 0; $key < $tokenIterator->count(); $key++) {
+        for ($key = 0; $key < $tokenIterator->count(); ++$key) {
             foreach ($this->sequences as $sequence) {
                 $message = '';
                 $tokenIterator->seek($key);