Fixed #562 -- when trying to reopen a module, only look in the local …

…scope, not any parent scopes.

tests/test_interpreter.py

@@ -623,6 +623,20 @@ class X
             end
             """)
 
+    def test_module_reopen_scope(self, space):
+        w_res = space.execute("""
+        class Foo
+        end
+
+        module Bar
+            module Foo
+            end
+        end
+        return Foo, Bar::Foo
+        """)
+        [w_cls1, w_cls2] = space.listview(w_res)
+        assert w_cls1 is not w_cls2
+
     def test_singleton_method(self, space):
         w_res = space.execute("""
         def Array.hello

topaz/interpreter.py

@@ -392,7 +392,7 @@ def BUILD_MODULE(self, space, bytecode, frame, pc):
         w_scope = frame.pop()
 
         name = space.symbol_w(w_name)
-        w_mod = w_scope.find_const(space, name)
+        w_mod = w_scope.find_local_const(space, name)
 
         if w_mod is None:
             w_mod = space.newmodule(name, w_scope=w_scope)