Cleanup deprecated symbol usages in testData

compiler/testData/codegen/boxAgainstJava/annotations/kClassMapping/classParameter.kt

@@ -4,7 +4,7 @@ class OK
 @JavaAnn(OK::class) class MyClass
 
 fun box(): String {
-    val ann = javaClass<MyClass>().getAnnotation(javaClass<JavaAnn>())
+    val ann = MyClass::class.java.getAnnotation(JavaAnn::class.java)
     if (ann == null) return "fail: cannot find JavaAnn on MyClass"
     return ann.value.simpleName!!
 }