bug symfony#19173 [Console] Decouple SymfonyStyle from TableCell (ro0NL)

This PR was squashed before being merged into the 2.7 branch (closes symfony#19173).

Discussion
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[Console] Decouple SymfonyStyle from TableCell

| Q             | A
| ------------- | ---
| Branch?       | 2.7
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | ~
| License       | MIT
| Doc PR        | ~

Alternative approach, ie BC, for symfony#19136 (i prefer that one though, as it also _fixes_ symfony#19123 )

Commits
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51f59d6 [Console] Decouple SymfonyStyle from TableCell

Author: fabpot

src/Symfony/Component/Console/Style/SymfonyStyle.php

@@ -17,7 +17,6 @@
 use Symfony\Component\Console\Helper\ProgressBar;
 use Symfony\Component\Console\Helper\SymfonyQuestionHelper;
 use Symfony\Component\Console\Helper\Table;
-use Symfony\Component\Console\Helper\TableCell;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Output\BufferedOutput;
 use Symfony\Component\Console\Output\OutputInterface;
@@ -218,21 +217,13 @@ public function caution($message)
      */
     public function table(array $headers, array $rows)
     {
-        array_walk_recursive($headers, function (&$value) {
-            if ($value instanceof TableCell) {
-                $value = new TableCell(sprintf('<info>%s</>', $value), array(
-                    'colspan' => $value->getColspan(),
-                    'rowspan' => $value->getRowspan(),
-                ));
-            } else {
-                $value = sprintf('<info>%s</>', $value);
-            }
-        });
+        $style = clone Table::getStyleDefinition('symfony-style-guide');
+        $style->setCellHeaderFormat('<info>%s</info>');
 
         $table = new Table($this);
         $table->setHeaders($headers);
         $table->setRows($rows);
-        $table->setStyle('symfony-style-guide');
+        $table->setStyle($style);
 
         $table->render();
         $this->newLine();