JVM/JVM_IR: fix mapping of KClass in annotation classes

* JVM incorrectly mapped T<KClass<...>> to T<Class<...>> because the
   annotation-ness of the type mapping mode was inherited one level
   down into a generic signature independent of T

 * JVM_IR was even worse as it did not use VALUE_FOR_ANNOTATION at all,
   mapping T<T<KClass<...>> to T<T<Class<...>> as well.

The correct behavior is to map KClass to Class only at top level or as
an argument of Array.

compiler/testData/writeSignature/annotations/kArrayClassOfKClass.kt

@@ -1,5 +1,3 @@
-// IGNORE_BACKEND: JVM_IR
-
 import kotlin.reflect.KClass
 
 annotation class Ann(val arg: Array<out KClass<out KClass<*>>>)

compiler/testData/writeSignature/annotations/kClassOfKClass.kt

@@ -0,0 +1,7 @@
+import kotlin.reflect.KClass
+
+annotation class Ann(val arg: KClass<out KClass<*>>)
+
+// method: Ann::arg
+// jvm signature:     ()Ljava/lang/Class;
+// generic signature: ()Ljava/lang/Class<+Lkotlin/reflect/KClass<*>;>;