[K/N] Dispose ObjC objects from main thread on main thread. ^KT-56402

Merge-request: KT-MR-9515
Merged-by: Alexander Shabalin <Alexander.Shabalin@jetbrains.com>

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

@@ -8,6 +8,7 @@
 #include "CompilerConstants.hpp"
 #include "Exceptions.h"
 #include "KAssert.h"
+#include "MainQueueProcessor.hpp"
 #include "Memory.h"
 #include "ObjCExportInit.h"
 #include "ObjectAlloc.hpp"
@@ -135,6 +136,9 @@ RuntimeState* initRuntime() {
   // Keep global variables in state as well.
   if (firstRuntime) {
     konan::consoleInit();
+    if (compiler::objcDisposeOnMain()) {
+      kotlin::initializeMainQueueProcessor();
+    }
 #if KONAN_OBJC_INTEROP
     Kotlin_ObjCExport_initialize();
 #endif