moved legacy tests that were not executed anymore in 2.x

test/Twig/Tests/Fixtures/functions/undefined_block.test

@@ -8,5 +8,5 @@
 {% block bar %}Bar{% endblock %}
 --DATA--
 return array()
---EXPECT--
-FooBarBar
+--EXCEPTION--
+Twig_Error_Runtime: Block "unknown" on template "base.twig" does not exist in "base.twig" at line 2.

test/Twig/Tests/LegacyFixtures/autoescape/filename.legacy.test

@@ -1,18 +0,0 @@
---TEST--
-"filename" autoescape strategy
---TEMPLATE--
-{{ br -}}
-{{ include('index.html.twig') -}}
-{{ include('index.txt.twig') -}}
---TEMPLATE(index.html.twig)--
-{{ br -}}
---TEMPLATE(index.txt.twig)--
-{{ br -}}
---DATA--
-return array('br' => '<br />')
---CONFIG--
-return array('autoescape' => 'filename')
---EXPECT--
-&lt;br /&gt;
-&lt;br /&gt;
-<br />