bug #21430 Casting TableCell value to string. (jaydiablo)

This PR was squashed before being merged into the 2.7 branch (closes #21430).

Discussion
----------

Casting TableCell value to string.

| Q             | A
| ------------- | ---
| Branch?       | 2.7
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #21429
| License       | MIT
| Doc PR        |

PHP throws a catchable fatal error when the value from this method is
used in strstr in the Table class. This fixes the error by casting to a string before returning the value.

Commits
-------

1e5707fed3 Casting TableCell value to string.

src/Symfony/Component/Console/Helper/TableCell.php

@@ -35,6 +35,10 @@ class TableCell
      */
     public function __construct($value = '', array $options = array())
     {
+        if (is_numeric($value) && !is_string($value)) {
+            $value = (string) $value;
+        }
+
         $this->value = $value;
 
         // check option names

src/Symfony/Component/Console/Tests/Helper/TableTest.php

@@ -538,6 +538,42 @@ TABLE
 | 1234 |
 +------+
 
+TABLE;
+
+        $this->assertEquals($expected, $this->getOutputContent($output));
+    }
+
+    public function testTableCellWithNumericIntValue()
+    {
+        $table = new Table($output = $this->getOutputStream());
+
+        $table->setRows(array(array(new TableCell(12345))));
+        $table->render();
+
+        $expected =
+<<<'TABLE'
++-------+
+| 12345 |
++-------+
+
+TABLE;
+
+        $this->assertEquals($expected, $this->getOutputContent($output));
+    }
+
+    public function testTableCellWithNumericFloatValue()
+    {
+        $table = new Table($output = $this->getOutputStream());
+
+        $table->setRows(array(array(new TableCell(12345.01))));
+        $table->render();
+
+        $expected =
+<<<'TABLE'
++----------+
+| 12345.01 |
++----------+
+
 TABLE;
 
         $this->assertEquals($expected, $this->getOutputContent($output));