Move tests on KClass.java* to box/classLiteral/java

Also replace WITH_REFLECT to WITH_RUNTIME to test that these cases correctly
work without reflection in the classpath

compiler/testData/codegen/box/classLiteral/java/kt11943.kt

@@ -0,0 +1,16 @@
+// WITH_RUNTIME
+
+import kotlin.reflect.KClass
+
+val <T : KClass<*>> T.myjava1: Class<*>
+    get() = java
+
+val <E : Any, T : KClass<E>> T.myjava2: Class<E>
+    get() = java
+
+class O
+class K
+
+fun box(): String =
+        O::class.myjava1.getSimpleName() + K::class.myjava2.getSimpleName()
+