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/diagnostics/tests/callableReference/property/abstractPropertyViaSubclasses.kt

@@ -1,6 +1,6 @@
 // !CHECK_TYPE
 
-import kotlin.reflect.KMemberProperty
+import kotlin.reflect.KProperty1
 
 interface Base {
     val x: Any
@@ -20,17 +20,17 @@ class C : B() {
 
 fun test() {
     val base = Base::x
-    checkSubtype<KMemberProperty<Base, Any>>(base)
+    checkSubtype<KProperty1<Base, Any>>(base)
     checkSubtype<Any>(base.get(A()))
     checkSubtype<Number>(<!TYPE_MISMATCH!>base.get(B())<!>)
     checkSubtype<Int>(<!TYPE_MISMATCH!>base.get(C())<!>)
 
     val a = A::x
-    checkSubtype<KMemberProperty<A, String>>(a)
+    checkSubtype<KProperty1<A, String>>(a)
     checkSubtype<String>(a.get(A()))
     checkSubtype<Number>(<!TYPE_MISMATCH!>a.get(<!TYPE_MISMATCH!>B()<!>)<!>)
 
     val b = B::x
-    checkSubtype<KMemberProperty<B, Number>>(b)
+    checkSubtype<KProperty1<B, Number>>(b)
     checkSubtype<Int>(<!TYPE_MISMATCH!>b.get(C())<!>)
 }