Support mapping between Java and Kotlin reflection objects

compiler/testData/codegen/boxAgainstJava/reflection/mapping/jClass2kClass.kt

@@ -0,0 +1,11 @@
+import jClass2kClass as J
+
+import kotlin.reflect.jvm.*
+import kotlin.test.assertEquals
+
+fun box(): String {
+    val j = javaClass<J>()
+    assertEquals(j, j.kotlin.java)
+
+    return "OK"
+}