Restore restriction on PluginDefs only in PluginConfig.const, add `…

…PluginConfig.constUnchecked` accepting ModuleDefs

distage/distage-extension-plugins/src/main/scala/izumi/distage/plugins/PluginConfig.scala

@@ -43,11 +43,23 @@ object PluginConfig extends PluginConfigStatic {
   def packages(packagesEnabled: Seq[String]): PluginConfig = PluginConfig(packagesEnabled, Nil, cachePackages = false, debug = false, Nil, Nil)
   def packagesThisPkg(implicit pkg: SourcePackageMaterializer): PluginConfig = packages(pkg.get.pkg)
 
-  /** Create a [[PluginConfig]] that simply contains the specified modules */
-  def const(plugins: Seq[ModuleBase]): PluginConfig = PluginConfig(Nil, Nil, cachePackages = false, debug = false, plugins, Nil)
+  /** Create a [[PluginConfig]] that simply contains the specified plugins */
+  def const(plugins: Seq[PluginBase]): PluginConfig = PluginConfig(Nil, Nil, cachePackages = false, debug = false, plugins, Nil)
 
-  /** Create a [[PluginConfig]] that simply contains the specified modules */
-  def const(plugin: ModuleBase): PluginConfig = const(Seq(plugin))
+  /** Create a [[PluginConfig]] that simply contains the specified plugin */
+  def const(plugin: PluginBase): PluginConfig = const(Seq(plugin))
+
+  /**
+    * Like [[const]], but accepts simple [[ModuleBase]].
+    * Unlike for inheritors of [[PluginDef]], changing a ModuleDef source code may not trigger recompilation of compile-time checks
+    */
+  def constUnchecked(modules: Seq[ModuleBase]): PluginConfig = PluginConfig(Nil, Nil, cachePackages = false, debug = false, modules, Nil)
+
+  /**
+    * Like [[const]], but accepts simple [[ModuleBase]].
+    * Unlike for inheritors of [[PluginDef]], changing a ModuleDef source code may not trigger recompilation of compile-time checks
+    */
+  def constUnchecked(module: ModuleBase): PluginConfig = constUnchecked(Seq(module))
 
   /** A [[PluginConfig]] that returns no plugins */
   lazy val empty: PluginConfig = const(Nil)