Properly set scope in declare_cpp_class

Cython/Compiler/Symtab.py

@@ -613,7 +613,7 @@ class Scope(object):
                 warning(pos, "'%s' already defined  (ignoring second definition)" % name, 0)
             else:
                 if scope:
-                    entry.type.scope = scope
+                    entry.type.set_scope(scope)
                     self.type_entries.append(entry)
             if base_classes:
                 if entry.type.base_classes and entry.type.base_classes != base_classes:
@@ -636,6 +636,7 @@ class Scope(object):
                     declare_inherited_attributes(entry, base_class.base_classes)
                     entry.type.scope.declare_inherited_cpp_attributes(base_class)
         if scope:
+            entry.type.set_scope(scope)
             declare_inherited_attributes(entry, base_classes)
             scope.declare_var(name="this", cname="this", type=PyrexTypes.CPtrType(entry.type), pos=entry.pos)
         if self.is_cpp_class_scope: