add a new static_analysis file to test star arguments separately

jedi/evaluate/param.py

@@ -49,6 +49,8 @@ def _get_calling_var_args(evaluator, var_args):
             param = names[0].parent
             if not isinstance(param, ExecutedParam):
                 break
+            # We never want var_args to be a tuple. This should be enough for
+            # now, we can change it later, if we need to.
             if isinstance(param.var_args, pr.Array):
                 var_args = param.var_args
     return var_args

test/static_analysis/arguments.py

@@ -13,12 +13,6 @@ simple()
 simple(1, 2)
 
 
-def nested(*args):
-    return simple(*args)
-
-nested(1)
-#! 6 type-error-too-few-arguments
-nested()
 #! 10 type-error-too-many-arguments
 simple(1, 2, 3)
 

test/static_analysis/star_arguments.py

@@ -0,0 +1,10 @@
+
+def simple(a):
+    return a
+
+def nested(*args):
+    return simple(*args)
+
+nested(1)
+#! 6 type-error-too-few-arguments
+nested()