add unittest for testing for cases where nonlocal variables do not end up in the freevars of the function

Author: cosminbasca

graalpython/com.oracle.graal.python.test/src/tests/test_scope.py

@@ -930,3 +930,18 @@ class D(B, C):
     locs = list(A.locs.keys())
     for k in ["__module__", "__qualname__", "ranges", "B", "C", "locs", "D"]:
         assert k in locs, locs
+
+
+def test_free_var_with_nonlocals():
+    def outer():
+        var = None
+
+        def toInternal(obj):
+            nonlocal var
+            x = 10
+
+        return toInternal
+    fnc = outer()
+    c = fnc.__code__
+    assert c.co_freevars == ('var',)
+    assert c.co_cellvars == tuple()