func scope check fixes

Module8/Visitors/ScopeCheckVisitor.cs

@@ -59,6 +59,7 @@ namespace SimpleLang.Visitors
 
         public override void VisitFuncCallNode(FuncCallNode fcn)
         {
+            fcn.Params?.Visit(this);
         }
     }
 }

TestCodeGenerator/Tests.cs

@@ -100,7 +100,7 @@ namespace TestCodeGenerator
         [Test]
         public void TestFunc()
         {
-            Assert.AreEqual("-4", TestHelper.GenerateNRun(@"    
+            Assert.AreEqual("-1", TestHelper.GenerateNRun(@"    
                                     function f(a,b,c) 
 
                                      function m(x)
@@ -117,7 +117,7 @@ namespace TestCodeGenerator
                                     end
                                     
                                     begin
-                                      var a,b,c; a := 1; b := 2; c := 3; 
+                                      var a,b,c; a := 2; b := 2; c := 3; 
                                       write(f(a,b,c));
                                     end
                                     "));