Restore support for local class literals in annotation arguments

This was broken in c1ab08c8ce where we started to represent KClassValue
as a ClassId of the referenced class + number of times it's been wrapped
into kotlin.Array. Local classes do not have a sane ClassId, so in this
change we restore the old behavior by representing KClassValue with a
sealed class value instead

 #KT-29891 Fixed

compiler/testData/codegen/box/reflection/annotations/localClassLiteral.kt

@@ -0,0 +1,24 @@
+// TARGET_BACKEND: JVM
+// WITH_REFLECT
+
+package test
+
+import kotlin.reflect.KClass
+import kotlin.test.assertEquals
+
+annotation class Anno(val k1: KClass<*>, val k2: KClass<*>, val k3: KClass<*>)
+
+fun box(): String {
+    class L
+
+    @Anno(k1 = L::class, k2 = Array<L?>::class, k3 = Array<out Array<L>>::class)
+    class M
+
+    val fqName = "test.LocalClassLiteralKt\$box\$L"
+    assertEquals(
+        "[@test.Anno(k1=class $fqName, k2=class [L$fqName;, k3=class [[L$fqName;)]",
+        M::class.annotations.toString()
+    )
+
+    return "OK"
+}