Spurious "Too many arguments" when unpacking empty dicts #9007

from typing import Dict, List, NamedTuple

def f1():
    pass

class C1(NamedTuple):
    pass

d_zero: Dict[str,str] = {}

print((lambda: 42)(**{}))     # error: Too many arguments
print((lambda: 42)(**d_zero)) # error: Too many arguments

print(f1(**{}))     # error: Too many arguments for "f1"
print(f1(**d_zero)) # error: Too many arguments for "f1"

print(C1(**{}))     # error: Too many arguments for "C1"
print(C1(**d_zero)) # error: Too many arguments for "C1"

# Empty lists work fine in recent versions:
l_zero: List[str] = []
print((lambda: 42)(*[]))
print((lambda: 42)(*l_zero))
print(f1(*[]))
print(f1(*l_zero))
print(C1(*[]))
print(C1(*l_zero))