Errors when using union type aliases with `isinstance`

[jrab89]

Bug Report

I'm getting errors when using an alias of a union type as the second argument to isinstance

To Reproduce

IntOrStr = int | str

foo = 0
bar = ""

if isinstance(foo, IntOrStr):
    print("foo is an IntOrStr")

if isinstance(bar, int | str):
    print("bar is an IntOrStr")

Expected Behavior

mypy shouldn't output any errors

Actual Behavior

mypy_isinstance_with_union_alias_issue.py:6: error: Parameterized generics cannot be used with class or instance checks  [misc]
mypy_isinstance_with_union_alias_issue.py:6: error: Argument 2 to "isinstance" has incompatible type "object"; expected "Union[type, UnionType, Tuple[Union[type, UnionType, Tuple[Any, ...]], ...]]"  [arg-type]

Your Environment

• Mypy version used: 0.991
• Mypy command-line flags: none
• Mypy configuration options from mypy.ini (and other config files): none
• Python version used: 3.11.0

Thanks!

[ngnpope]

This looks like a duplicate of #11673.