Fixes nan

Lib/test/test_float.py

@@ -582,8 +582,6 @@ class GeneralFloatCases(unittest.TestCase):
         self.assertEqual(hash(float('inf')), sys.hash_info.inf)
         self.assertEqual(hash(float('-inf')), -sys.hash_info.inf)
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     def test_hash_nan(self):
         value = float('nan')
         self.assertEqual(hash(value), object.__hash__(value))

vm/src/builtins/float.rs

@@ -539,7 +539,11 @@ impl Comparable for PyFloat {
 impl Hashable for PyFloat {
     #[inline]
     fn hash(zelf: &crate::Py<Self>, _vm: &VirtualMachine) -> PyResult<hash::PyHash> {
-        Ok(hash::hash_float(zelf.to_f64()))
+        if zelf.to_f64().is_nan() {
+            Ok(zelf.get_id() as hash::PyHash)
+        } else {
+            Ok(hash::hash_float(zelf.to_f64()))
+        }
     }
 }