Regression test for #310

Re-open #310 for 2.1.4 - trunk checks out fine.

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@5646 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishtest/tests/r00310.vtc

+# $Id$
+
+test "Test obj.http.x-cache in vcl_hit"
+
+varnish v1 -badvcl {
+	backend foo { .host = "localhost"; }
+
+	sub vcl_hit {
+		set obj.http.x-cache = "hit";
+	}
+}
+
+