test fix

Author: TorkelE

test/dsl/dsl_basic_model_construction.jl

@@ -300,7 +300,7 @@ let
         0.01, ∅ ⟶ X1
         (3.1, 3.2), (X1,X1) → X2
         (0.0, 2.1), X2 → (X3,X3)
-        (901.0, 63.5), (X3,X3) → (C4,X4)
+        (901.0, 63.5), (X3,X3) → (X4,X4)
         7, X4 → X5
         8, X4 → X5
         1.0, X5 ⟶ ∅