Override "hashCode" and "equals" for Getter and Setter to fix KT-13490

core/reflection.jvm/src/kotlin/reflect/jvm/internal/KPropertyImpl.kt

@@ -157,6 +157,12 @@ internal abstract class KPropertyImpl<out V> private constructor(
         }
 
         override fun toString(): String = "getter of $property"
+
+        override fun equals(other: Any?): Boolean =
+            other is Getter<*> && property == other.property
+
+        override fun hashCode(): Int =
+            property.hashCode()
     }
 
     abstract class Setter<V> : Accessor<V, Unit>(), KMutableProperty.Setter<V> {
@@ -172,6 +178,12 @@ internal abstract class KPropertyImpl<out V> private constructor(
         }
 
         override fun toString(): String = "setter of $property"
+
+        override fun equals(other: Any?): Boolean =
+            other is Setter<*> && property == other.property
+
+        override fun hashCode(): Int =
+            property.hashCode()
     }
 
     companion object {