minor symfony#19068 [PHPUnitBridge] PHP 5.3 compatibility (xabbuh)

This PR was merged into the 3.2-dev branch.

Discussion
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[PHPUnitBridge] PHP 5.3 compatibility

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

Commits
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e65ec65 [PHPUnitBridge] PHP 5.3 compatibility

Author: nicolas-grekas

src/Symfony/Bridge/PhpUnit/ErrorAssert.php

@@ -53,8 +53,14 @@ public static function assertErrorsAreTriggered($expectedType, $expectedMessages
             });
 
             $testCode();
-        } finally {
-            restore_error_handler();
+        } catch (\Exception $e) {
+        } catch (\Throwable $e) {
+        }
+
+        restore_error_handler();
+
+        if (isset($e)) {
+            throw $e;
         }
 
         \PHPUnit_Framework_Assert::assertCount(count($expectedMessages), $triggeredMessages);