Update compiler tests to use KProperty instead of PropertyMetadata

compiler/testData/codegen/box/delegatedProperty/delegateForExtPropertyInClass.kt

@@ -1,5 +1,7 @@
+import kotlin.reflect.KProperty
+
 class Delegate {
-    fun getValue(t: F.A, p: PropertyMetadata): Int = 1
+    fun getValue(t: F.A, p: KProperty<*>): Int = 1
 }
 
 class F {
@@ -15,4 +17,4 @@ class F {
 
 fun box(): String {
     return if(F().foo() == 1) "OK" else "fail"
-}
+}