More tests for super calls.

test/super/call_different_arity.wren

@@ -0,0 +1,20 @@
+class Base {
+  foo { IO.print("Base.foo") }
+  foo(a) { IO.print("Base.foo(a)") }
+  foo(a, b) { IO.print("Base.foo(a, b)") }
+}
+
+class Derived is Base {
+  foo(a) {
+    IO.print("Derived.bar(a)")
+    super
+    super(1)
+    super(1, 2)
+  }
+}
+
+(new Derived).foo(1)
+// expect: Derived.bar(a)
+// expect: Base.foo
+// expect: Base.foo(a)
+// expect: Base.foo(a, b)

test/super/call_other_method.wren

@@ -16,5 +16,4 @@ class Derived is Base {
 // expect: Base.foo
 
 // TODO: Super operator calls.
-// TODO: Super where there is no inherited method.
 // TODO: Super setter calls.

test/super/no_superclass_method.wren

@@ -0,0 +1,7 @@
+class Base {}
+
+class Derived is Base {
+  foo { super.doesNotExist } // expect runtime error: Base does not implement method 'doesNotExist'.
+}
+
+(new Derived).foo