[K/N] Add binary option to produce error on mangled objc names (#5264)

objcExportErrorOnNameCollisions=true binary option makes the compiler
emit an error whenever it mangles a name emitted by ObjCExport.

^KT-65863 Fixed

native/base/src/main/kotlin/org/jetbrains/kotlin/backend/konan/ObjCExportNameCollisionMode.kt

@@ -0,0 +1,24 @@
+/*
+ * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.backend.konan
+
+enum class ObjCExportNameCollisionMode {
+    /*
+     * In this mode, exported ObjC symbol name collisions will not produce any compiler output. 
+     */
+    NONE,
+
+    /*
+     * In this mode, exported ObjC symbol name collisions will produce a compiler warning. 
+     */
+    WARNING,
+
+    /*
+     * In this mode, exported ObjC symbol name collisions will produce a compiler error.
+     */
+    ERROR,
+    ;
+}