Fixes for tests

Given that this changes stubgen, it may make sense to have a more
targeted fix.

Author: A5rocks

mypy/stubgen.py

@@ -556,7 +556,7 @@ def _get_func_args(self, o: FuncDef, ctx: FunctionContext) -> list[ArgSig]:
                 if not isinstance(get_proper_type(annotated_type), AnyType):
                     typename = self.print_annotation(annotated_type)
 
-            if actually_pos_only_args and arg_.pos_only:
+            if actually_pos_only_args and (arg_.pos_only and kind != ARG_STAR):
                 pos_only_marker_position += 1
 
             if kind.is_named() and not any(arg.name.startswith("*") for arg in args):

test-data/unit/pythoneval.test

@@ -1027,7 +1027,7 @@ with f('') as s:
     reveal_type(s)
 [out]
 _program.py:13: note: Revealed type is "def (x: builtins.int) -> contextlib._GeneratorContextManager[builtins.str, None, None]"
-_program.py:14: note: Revealed type is "def (*x: builtins.str) -> contextlib._GeneratorContextManager[builtins.int, None, None]"
+_program.py:14: note: Revealed type is "def (*builtins.str) -> contextlib._GeneratorContextManager[builtins.int, None, None]"
 _program.py:16: error: Argument 1 to "f" has incompatible type "str"; expected "int"
 _program.py:17: note: Revealed type is "builtins.str"