[ObjCExport] K1 header generator test setup: Use native compiler/native builtIns and production namer configuration

To keep the tests closer to 'real life'/'production.'

KT-65670

native/objcexport-header-generator/test/org/jetbrains/kotlin/backend/konan/tests/ObjCExportTypeTranslationTest.kt

@@ -88,7 +88,7 @@ class ObjCExportTypeTranslationTest(
             """.trimIndent()
         )
 
-        assertEquals("Unit * -> void", header.renderTypesOfSymbol("foo"))
+        assertEquals("KotlinUnit * -> void", header.renderTypesOfSymbol("foo"))
     }