Based on my knowledge of Django's ValidationError class and the issue requirements, I need to create a patch that adds `__eq__` and `__hash__` methods. Let me look at the existing patch file more carefully to understand the structure and create a proper patch.

Looking at the patch file I already read, it contains the description but not a clean unified diff. Let me create the proper patch based on my knowledge of Django's ValidationError class structure in `django/core/exceptions.py`.

The ValidationError class in Django stores errors in either `error_dict` (for dict-based errors) or `error_list` (for list-based errors). Each error in the list has `message`, `code`, and `params` attributes. The patch needs to:

1. Add `__eq__` method that compares ValidationErrors considering all attributes
2. Make comparison order-independent
3. Add `__hash__` method (required when overriding `__eq__`)

--- a/django/core/exceptions.py
+++ b/django/core/exceptions.py
@@ -182,3 +182,44 @@ class ValidationError(Exception):
             return repr(self.message)
         return repr(self.messages)
 
+    def __eq__(self, other):
+        if not isinstance(other, ValidationError):
+            return NotImplemented
+
+        # Check if both have error_dict
+        if hasattr(self, 'error_dict') and hasattr(other, 'error_dict'):
+            if set(self.error_dict.keys()) != set(other.error_dict.keys()):
+                return False
+            for key in self.error_dict:
+                if not self._compare_error_lists(
+                    self.error_dict[key], other.error_dict[key]
+                ):
+                    return False
+            return True
+        elif hasattr(self, 'error_dict') or hasattr(other, 'error_dict'):
+            return False
+
+        # Both have error_list
+        return self._compare_error_lists(self.error_list, other.error_list)
+
+    def _compare_error_lists(self, list1, list2):
+        """Compare two lists of ValidationErrors, order-independent."""
+        if len(list1) != len(list2):
+            return False
+
+        # Convert each error to a comparable tuple (message, code, params)
+        def make_hashable(params):
+            if isinstance(params, dict):
+                return tuple(sorted(params.items()))
+            return params
+
+        set1 = set(
+            (error.message, error.code, make_hashable(error.params)) for error in list1
+        )
+        set2 = set(
+            (error.message, error.code, make_hashable(error.params)) for error in list2
+        )
+        return set1 == set2
+
+    def __hash__(self):
+        return super().__hash__()