Replaced deprecated inline classes with JvmInline value classes in tests

compiler/testData/codegen/box/inlineClasses/boxNullableForFakeOverride.kt

@@ -1,9 +1,11 @@
+// WITH_RUNTIME
 // IGNORE_BACKEND: JVM
 abstract class C<T> {
     fun foo(v: T?, x: (T) -> Any?) = v?.let { x(it) }
 }
 
-inline class V(val value: Any?)
+@JvmInline
+value class V(val value: Any?)
 
 class D : C<V>()