An int passed into constructor as pluginDefinition value

Based on Jons comment #2, I created a patch. I think that the code needs a small fix so I've done it, too.

if (!empty($plugin_definition)) {
    $this->provider = $this->pluginDefinition['provider'];
}
if (!empty($configuration)) {
    $this->setConfiguration($configuration);
}

...and the correct patch is this (sorry for that mess)

thanks

Plugin instances are not created by directly calling the constructor of the plugin class. If a module does that, that is a bug in that module, not in this module.

None of the classes that extends PluginBase verifies $this->pluginDefinition is not empty because plugins always have a plugin definition.