Intellisense messes with docstrings when function is decorated via typing.overload

[arquolo]

In this snippet:

from typing import overload

@overload
def foo(x: int) -> int: ...

@overload
def foo(x: str) -> str: ...

def foo(x):
    """Return identity"""
    return x

f = foo(5)

Intellisense should show docs for foo, but it doesn't.
Though, everything works when all overloads are moved to *.pyi.
Tested on:

• Python: 3.7.5-conda
• Python Language Server: 0.5.10.0
• VSCode: 1.42.0-insider

[MikhailArkhipov]

typing is not actually imported but rather specialized in code so overload is not doing anything. When you move it to a stub, then it is properly handled as a multiple overloads since LS has that capability. Related #535.