testcase for parameters with nested records

testsuite/compiler/params/paramsCnc.gf

@@ -0,0 +1,20 @@
+concrete paramsCnc of params = {
+
+param
+  Number = Sg | Pl ;
+  Person = P1 | P2 | P3 ;
+
+oper
+  Agr = {n : Number; p : Person} ;
+
+param
+  Case = Nom | Acc | Abess Agr ;
+
+lincat
+  S = {s : Str} ;
+  NP = {s : Case => Str} ;
+
+lin
+  test np = {s = np.s ! Abess {n=Sg;p=P3}} ;
+
+}