[Native] Enable objcExportBlockExplicitParameterNames by default

As the next step of KT-77488, we enable it by default.
We keep the binary option available as we want users to be able to
disable it in case of problems.

^KT-78810 Fixed

Author: sbogolepov

kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanCompilerFrontendServices.kt

@@ -45,7 +45,7 @@ internal fun StorageComponentContainer.initContainer(config: KonanConfig) {
                 get() = config.configuration.getBoolean(KonanConfigKeys.OBJC_GENERICS)
 
             override val objcExportBlockExplicitParameterNames: Boolean
-                get() = config.configuration.getBoolean(BinaryOptions.objcExportBlockExplicitParameterNames)
+                get() = config.configuration.get(BinaryOptions.objcExportBlockExplicitParameterNames, true)
 
             override val disableSwiftMemberNameMangling: Boolean
                 get() = config.configuration.getBoolean(BinaryOptions.objcExportDisableSwiftMemberNameMangling)

kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/objcexport/ObjCExport.kt

@@ -60,7 +60,7 @@ internal fun produceObjCExportInterface(
     val reportNameCollisions = config.configuration.getBoolean(BinaryOptions.objcExportReportNameCollisions)
     val errorOnNameCollisions = config.configuration.getBoolean(BinaryOptions.objcExportErrorOnNameCollisions)
     val explicitMethodFamily = config.configuration.getBoolean(BinaryOptions.objcExportExplicitMethodFamily)
-    val objcExportBlockExplicitParameterNames = config.configuration.getBoolean(BinaryOptions.objcExportBlockExplicitParameterNames)
+    val objcExportBlockExplicitParameterNames = config.configuration.get(BinaryOptions.objcExportBlockExplicitParameterNames, true)
 
     val problemCollector = ObjCExportCompilerProblemCollector(context)