fixed PY-13477 PyQt5: missing completion for QApplication class

PY-14235 PyCharm auto completion doesn't work for PyQt 5.3 (but does for 5.2)
PY-14103 Skeleton Generator Problems with PyQt4
PY-13990 PyCharm 4 EAP: fails on generation index for PyQt5 (5.3.2) and python 3.4

python/helpers/pycharm_generator_utils/module_redeclarator.py

@@ -294,6 +294,8 @@ class ModuleRedeclarator(object):
                             break
                     if self._defined.get(found_name, False):
                         out(indent, prefix, found_name, postfix)
+                    elif hasattr(self, "app"):
+                        return
                     else:
                         # a forward / circular declaration happens
                         notice = ""