backend/tests: Add blackbox tests from Kotlin JVM

Added tests from testData/codegen/box directory. There are blackbox tests
in other directories and they are to be added.

backend.native/tests/external/codegen/blackbox/reflection/call/localClassMember.kt

@@ -0,0 +1,12 @@
+// TODO: muted automatically, investigate should it be ran for JS or not
+// IGNORE_BACKEND: JS
+
+// WITH_REFLECT
+
+fun box(): String {
+    class Local {
+        fun result(s: String) = s
+    }
+
+    return Local::result.call(Local(), "OK")
+}