If a decorator is added to a function / method, then we could get err…

…ors like:

```
ValueError: fn() requires a code object with 0 free vars, not 1
```

This fixes this problem.

PiperOrigin-RevId: 718943581

etils/ecolab/inplace_reload.py

@@ -129,7 +129,7 @@ def _update_function(self, old: types.FunctionType, new: types.FunctionType):
     ]:
       try:
         setattr(old, name, getattr(new, name))
-      except (AttributeError, TypeError):
+      except (AttributeError, TypeError, ValueError):
         pass
 
   def _update_property(self, old: property, new: property):

etils/ecolab/inplace_reload_test.py

@@ -12,8 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-"""Tests."""
-
 from __future__ import annotations
 
 import dataclasses
@@ -227,6 +225,36 @@ def fn(self):
   assert a.fn() == 2
 
 
+def test_reload_decorated_method(reloader: _Reloader):  # pylint: disable=redefined-outer-name
+  old_module = reloader.reimport_module(
+      'test_module',
+      """
+      class A:
+        def fn(self, value):
+          return value
+      """,
+  )
+
+  a = old_module.A()
+  assert a.fn('value') == 'value'
+
+  reloader.reimport_module(
+      'test_module',
+      """
+      def decorator(fn):
+        def wrapper(self, value, *args, **kwargs):
+          return fn(self, 'decorated-' + value, *args, **kwargs)
+        return wrapper
+
+      class A:
+        @decorator
+        def fn(self, value):
+          return value
+      """,
+  )
+  assert a.fn('value') == 'decorated-value'
+
+
 def test_reload_inter_module(reloader: _Reloader):  # pylint: disable=redefined-outer-name
   old_mod_a = reloader.reimport_module(
       'test_module_a',