Simplify property hierarchy in reflection

Leave only 3*2 = 6 classes: KProperty0, KProperty1, KProperty2 and their
mutable analogs, depending on the number of receivers a property takes

compiler/testData/codegen/boxWithStdlib/callableReference/property/genericProperty.kt

@@ -1,6 +1,6 @@
 //For KT-6020
-import kotlin.reflect.KMemberProperty
-import kotlin.reflect.KMutableMemberProperty
+import kotlin.reflect.KProperty1
+import kotlin.reflect.KMutableProperty1
 
 class Value<T>(var value: T = null as T, var text: String? = null)
 
@@ -8,7 +8,7 @@ val <T> Value<T>.additionalText by DVal(Value<T>::text) //works
 
 val <T> Value<T>.additionalValue by DVal(Value<T>::value) //not work
 
-class DVal<T, R, P: KMemberProperty<T, R>>(val kmember: P) {
+class DVal<T, R, P: KProperty1<T, R>>(val kmember: P) {
     fun get(t: T, p: PropertyMetadata): R {
         return kmember.get(t)
     }
@@ -17,4 +17,4 @@ class DVal<T, R, P: KMemberProperty<T, R>>(val kmember: P) {
 fun box(): String {
     val p = Value("O", "K")
     return p.additionalValue + p.additionalText
-}
+}