Merge pull request #280 from dwijnand/fix-the-CrossVersion-compat

Fix CrossVersion.Disabled compat

build.sbt

@@ -157,6 +157,12 @@ lazy val lmCore = (project in file("core"))
       exclude[DirectMissingMethodProblem]("sbt.librarymanagement.ArtifactExtra.extension"),
       exclude[DirectMissingMethodProblem]("sbt.librarymanagement.ArtifactTypeFilterExtra.types"),
 
+      // by mistake we aliased the companion object instead of an instance of Disabled
+      // but it was aliased as a constant expression, so even if the binary API has changed
+      // there are no call sites in bytecode because the value got inlined
+      // also it's wouldn't work so I doubt anyone has made use of it
+      exclude[DirectMissingMethodProblem]("sbt.librarymanagement.CrossVersionFunctions.Disabled"),
+
       // contraband issue
       exclude[DirectMissingMethodProblem]("sbt.internal.librarymanagement.ConfigurationReportLite.copy*"),
       exclude[DirectMissingMethodProblem]("sbt.internal.librarymanagement.UpdateReportLite.copy*"),

core/src/main/scala/sbt/librarymanagement/CrossVersionExtra.scala

@@ -8,7 +8,7 @@ final case class ScalaVersion(full: String, binary: String)
 private[librarymanagement] abstract class CrossVersionFunctions {
 
   /** Compatibility with 0.13 */
-  final val Disabled = sbt.librarymanagement.Disabled
+  final val Disabled = sbt.librarymanagement.Disabled()
   final val Binary = sbt.librarymanagement.Binary
   final val Constant = sbt.librarymanagement.Constant
   final val Full = sbt.librarymanagement.Full
@@ -37,7 +37,7 @@ private[librarymanagement] abstract class CrossVersionFunctions {
   def binary: CrossVersion = Binary()
 
   /** Disables cross versioning for a module. */
-  def disabled: CrossVersion = Disabled()
+  def disabled: CrossVersion = Disabled
 
   /** Cross-versions a module with a constant string (typically the binary Scala version).  */
   def constant(value: String): CrossVersion = Constant(value)