jps: fix mergedCompilerArguments getter (mergedCompilerArguments)

jps-plugin/src/org/jetbrains/kotlin/jps/model/ModuleSettings.kt

@@ -81,6 +81,7 @@ private inline fun <reified T : CommonCompilerArguments> JpsModule.getCompilerAr
 
     val facetSettings = kotlinFacet?.settings ?: return projectSettingsCopy
     if (facetSettings.useProjectSettings) return projectSettingsCopy
+    facetSettings.updateMergedArguments()
     return facetSettings.mergedCompilerArguments as? T ?: projectSettingsCopy
 }