Deprecate PropertyMetadata, use KProperty<*> for delegated properties instead

compiler/testData/diagnostics/tests/LateInit.kt

@@ -1,5 +1,7 @@
+import kotlin.reflect.KProperty
+
 class CustomDelegate {
-    operator fun getValue(thisRef: Any?, prop: PropertyMetadata): String = prop.name
+    operator fun getValue(thisRef: Any?, prop: KProperty<*>): String = prop.name
 }
 
 public abstract class A<T: Any, V: String?>(<!INAPPLICABLE_LATEINIT_MODIFIER_PRIMARY_CONSTRUCTOR_PARAMETER!>lateinit<!> var p2: String) {
@@ -62,4 +64,4 @@ public class B {
     init {
         a.length
     }
-}
+}