Temporary force building all libraries with old backend

libraries/commonConfiguration.gradle

@@ -199,6 +199,7 @@ ext.configureJvmIrBackend = { Project project ->
     project.tasks.withType(KotlinCompile.class) { task ->
         task.kotlinOptions {
             useIR = project.kotlinBuildProperties.useIRForLibraries
+            freeCompilerArgs += "-Xuse-old-backend"
         }
     }
 }