[2.7] [FrameworkBundle] bugfix in configuration for assets

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

If both of configurations are defined, the exception is break because it isn't
defined properly (missing backslash in FQCN for ```\LogicException```).
Also, the message was wrong (it's referred to "templating.templating" instead of
"framework.templating").

Author: phansys

src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php

@@ -65,7 +65,7 @@ public function getConfigTreeBuilder()
 
                         // convert the old configuration to the new one
                         if (isset($v['assets'])) {
-                            throw new LogicException('You cannot use assets settings under "templating.templating" and "assets" configurations in the same project.');
+                            throw new \LogicException('You cannot use assets settings under "framework.templating" and "assets" configurations in the same project.');
                         }
 
                         $v['assets'] = array(

src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/ConfigurationTest.php

@@ -86,6 +86,25 @@ public function testInvalidValueTrustedProxies()
         ));
     }
 
+    /**
+     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidConfigurationException
+     * @expectedExceptionMessage You cannot use assets settings under "framework.templating" and "assets" configurations in the same project.
+     */
+    public function testInvalidValueAssets()
+    {
+        $processor = new Processor();
+        $configuration = new Configuration(true);
+        $processor->processConfiguration($configuration, array(
+            array(
+                'templating' => array(
+                    'engines' => null,
+                    'assets_base_urls' => '//example.com',
+                ),
+                'assets' => null,
+            ),
+        ));
+    }
+
     protected static function getBundleDefaultConfig()
     {
         return array(