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

js/js.translator/testData/callableReference/property/cases/kClassInstanceIsInitializedFirst.kt

@@ -1,11 +1,11 @@
 // This test was adapted from compiler/testData/codegen/boxWithStdlib/callableReference/property/.
 package foo
 
-import kotlin.reflect.KMemberProperty
+import kotlin.reflect.KProperty1
 
 class A {
     companion object {
-        val ref: KMemberProperty<A, String> = A::foo
+        val ref: KProperty1<A, String> = A::foo
     }
 
     val foo: String = "OK"