When working on EAPs and other bleeding-edge features, it is frequently required to be able to test a code on different versions of the compiler. Right now one needs to change the version of the plugin for that, which could be complicated. In our case, the kotlin plugin is encapsulated in our own compatibility plugin, so in order to change the compiler version, we need to change the version in the plugin and re-deploy it. It would be helpful to be able to affect the actual version of the compiler in plugin by an external gradle property.…