add types to sys.getrefcount (#237)

Author: tharvik

stdlib/2.7/sys.pyi

@@ -116,7 +116,7 @@ def getcheckinterval() -> int: ...  # deprecated
 def getdefaultencoding() -> str: ...
 def getdlopenflags() -> int: ...
 def getfilesystemencoding() -> Union[str, None]: ...
-def getrefcount(object) -> int: ...
+def getrefcount(arg: Any) -> int: ...
 def getrecursionlimit() -> int: ...
 def getsizeof(obj: object, default: int = ...) -> int: ...
 def getprofile() -> None: ...

stdlib/3/sys.pyi

@@ -125,7 +125,7 @@ def getcheckinterval() -> int: ...  # deprecated
 def getdefaultencoding() -> str: ...
 def getdlopenflags() -> int: ...  # Unix only
 def getfilesystemencoding() -> str: ...  # cannot return None
-def getrefcount(object) -> int: ...
+def getrefcount(arg: Any) -> int: ...
 def getrecursionlimit() -> int: ...
 
 @overload