adjusting overload of fractions.Fraction.__new__ (#13241)

Author: tungol

stdlib/@tests/stubtest_allowlists/common.txt

@@ -16,7 +16,6 @@ contextlib._GeneratorContextManagerBase.__init__  # skipped in the stubs in favo
 ctypes.CDLL._FuncPtr  # None at class level but initialized in __init__ to this value
 ctypes.memmove  # CFunctionType
 ctypes.memset  # CFunctionType
-fractions.Fraction.__new__  # overload is too complicated for stubtest to resolve
 http.client.HTTPConnection.response_class  # the actual type at runtime is abc.ABCMeta
 importlib.abc.Loader.exec_module  # See Lib/importlib/_abc.py. Might be defined for backwards compatibility
 importlib.abc.MetaPathFinder.find_spec  # Not defined on the actual class, but expected to exist.

stdlib/fractions.pyi

@@ -27,11 +27,11 @@ class Fraction(Rational):
     @overload
     def __new__(cls, numerator: int | Rational = 0, denominator: int | Rational | None = None) -> Self: ...
     @overload
-    def __new__(cls, value: float | Decimal | str, /) -> Self: ...
+    def __new__(cls, numerator: float | Decimal | str) -> Self: ...
 
     if sys.version_info >= (3, 14):
         @overload
-        def __new__(cls, value: _ConvertibleToIntegerRatio) -> Self: ...
+        def __new__(cls, numerator: _ConvertibleToIntegerRatio) -> Self: ...
 
     @classmethod
     def from_float(cls, f: float) -> Self: ...