Update tests so they compile at the very least

bin/varnishtest/tests.disabled/r00693.vtc

@@ -41,7 +41,7 @@ varnish v1 -arg "-p workspace_client=3072" -vcl+backend {
 	}
 	sub vcl_hash {
 		hash_data(req.url);
-		return (hash);
+		return (lookup);
 	}
 } -start
 

bin/varnishtest/tests.disabled/r00978.vtc

@@ -23,7 +23,7 @@ varnish v1 -vcl+backend {
 		}
 	}
 	sub vcl_backend_response {
-		if (req.url == "/") {
+		if (bereq.url == "/") {
 			set beresp.do_esi = true;
 		}
 		set beresp.do_stream = true;

bin/varnishtest/tests.disabled/t00001.vtc

@@ -23,10 +23,10 @@ server s1 {
 
 varnish v1 -vcl+backend {
 	sub vcl_backend_response {
-		if (req.url == "/foo") {
+		if (bereq.url == "/foo") {
 			set beresp.do_gzip = true;
 		}
-		if (req.url == "/barf") {
+		if (bereq.url == "/barf") {
 			set beresp.do_gunzip = true;
 		}
 		set beresp.do_stream = true;