false positive "error: Type application has too many types (1 expected)" when using pipe instead of Union for type alias.

[tayler6000]

Bug Report

When using a pipe to create a type alias error: Type application has too many types (1 expected) is raised. This is not the case if you use a Union.

To Reproduce/Actual Behavior

from typing import Union


type_alias1= tuple[int, int, int] |  int  # error: Type application has too many types (1 expected)
type_alias2 = Union[tuple[int, int, int], int]  # passes type check

My Environment

• Mypy versions used: 0.960+dev.10ba5c1aa14e01be1cfacb322136e22751617d26, and 0.942
• Python version used: Python 3.10.2
• Operating system and version: Windows 10 Home (21H2)

[JelleZijlstra]

Duplicate of #11098