Replace list comprehension with generator expresion when calling any() (

#604)

This allows `any()` to return early without needing to iterate over the entire list.

Resolves #604

PiperOrigin-RevId: 317701319

pytype/pyi/parser.py

@@ -982,7 +982,7 @@ def new_function(
     # Extract out abstractmethod and coroutine decorators, there should be at
     # most one remaining decorator.
     def _check_decorator(decorators, decorator_set):
-      exists = any([x in decorators for x in decorator_set])
+      exists = any(x in decorators for x in decorator_set)
       if exists:
         decorators -= decorator_set
       return exists