[K/N] Debug util for checking if object is global constant

kotlin-native/runtime/src/main/cpp/Runtime.cpp

@@ -378,4 +378,9 @@ KBoolean Kotlin_Debugging_isThreadStateNative() {
     return kotlin::GetThreadState() == kotlin::ThreadState::kNative;
 }
 
+
+KBoolean Kotlin_Debugging_isPermanent(KRef obj) {
+    return obj->permanent();
+}
+
 }  // extern "C"