Add feature and attribute definition

compiler/rustc_feature/src/active.rs

@@ -391,6 +391,8 @@ declare_features! (
     (active, doc_masked, "1.21.0", Some(44027), None),
     /// Allows `dyn* Trait` objects.
     (incomplete, dyn_star, "1.65.0", Some(102425), None),
+    // Uses generic effect parameters for ~const bounds
+    (active, effects, "CURRENT_RUSTC_VERSION", Some(102090), None),
     /// Allows `X..Y` patterns.
     (active, exclusive_range_pattern, "1.11.0", Some(37854), None),
     /// Allows exhaustive pattern matching on types that contain uninhabited types.