[K/N] Move ObjCOverridabilityCondition to proper module

It was not active in diagnostic tests otherwise.

kotlin-native/backend.native/compiler/ir/backend.native/resources/META-INF/services/org.jetbrains.kotlin.resolve.ExternalOverridabilityCondition

@@ -1 +0,0 @@
-org.jetbrains.kotlin.ir.objcinterop.ObjCOverridabilityCondition

native/frontend/build.gradle.kts

@@ -7,6 +7,7 @@ dependencies {
     compileOnly(project(":compiler:frontend"))
     compileOnly(project(":compiler:frontend.java"))
     compileOnly(project(":core:compiler.common.native"))
+    compileOnly(project(":compiler:ir.objcinterop"))
     compileOnly(intellijCore())
     api(project(":native:kotlin-native-utils"))
 }

native/frontend/resources/META-INF/services/org.jetbrains.kotlin.resolve.ExternalOverridabilityCondition

@@ -0,0 +1 @@
+org.jetbrains.kotlin.resolve.konan.platform.ObjCOverridabilityCondition

native/frontend/src/org/jetbrains/kotlin/resolve/konan/platform/ObjCOverridabilityCondition.kt

@@ -3,11 +3,14 @@
  * 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.ir.objcinterop
+package org.jetbrains.kotlin.resolve.konan.platform
 
 import org.jetbrains.kotlin.descriptors.CallableDescriptor
 import org.jetbrains.kotlin.descriptors.ClassDescriptor
 import org.jetbrains.kotlin.descriptors.FunctionDescriptor
+import org.jetbrains.kotlin.descriptors.PropertyDescriptor
+import org.jetbrains.kotlin.ir.objcinterop.getExternalObjCMethodInfo
+import org.jetbrains.kotlin.ir.objcinterop.isExternalObjCClass
 import org.jetbrains.kotlin.resolve.ExternalOverridabilityCondition
 
 /**