bpo-40196: Fix a bug in the symtable when reporting inspecting global variables (GH-19391)

diff --git a/Lib/test/test_symtable.py b/Lib/test/test_symtable.py
index bea2ce1..98d718c 100644
--- a/Lib/test/test_symtable.py
+++ b/Lib/test/test_symtable.py
@@ -99,6 +99,7 @@
         self.assertTrue(self.spam.lookup("bar").is_declared_global())
         self.assertFalse(self.internal.lookup("x").is_global())
         self.assertFalse(self.Mine.lookup("instance_var").is_global())
+        self.assertTrue(self.spam.lookup("bar").is_global())
 
     def test_nonlocal(self):
         self.assertFalse(self.spam.lookup("some_var").is_nonlocal())
@@ -108,7 +109,10 @@
 
     def test_local(self):
         self.assertTrue(self.spam.lookup("x").is_local())
-        self.assertFalse(self.internal.lookup("x").is_local())
+        self.assertFalse(self.spam.lookup("bar").is_local())
+
+    def test_free(self):
+        self.assertTrue(self.internal.lookup("x").is_free())
 
     def test_referenced(self):
         self.assertTrue(self.internal.lookup("x").is_referenced())