IR: skip script inner classes in LDL

#KT-49012 fixed

compiler/testData/codegen/script/innerClass.kts

@@ -0,0 +1,29 @@
+
+val b = "K"
+
+inner class InnerClass(val s: String) {
+    fun test1() = s + b
+
+    inner class C1 {
+        fun bar(c: String) = s + b + c
+    }
+
+    fun test2() = C1().bar("!")
+
+    inner class C2 {
+        fun bar(c: String) = s + b + c
+
+        fun test(): String {
+            var c = "?"
+            return object {
+                fun run() = s + b + c
+            }.run()
+        }
+    }
+
+    fun test3() = C2().test()
+}
+
+val rv = InnerClass("O").test1() + InnerClass("_O").test2() + InnerClass("__O").test3()
+
+// expected: rv: OK_OK!__OK?