Add more refined typelevel test

Fixes https://github.com/coursier/coursier/issues/536

sbt-coursier/src/main/scala/coursier/Tasks.scala

@@ -5,6 +5,7 @@ import java.net.URL
 import java.util.concurrent.{ExecutorService, Executors}
 
 import coursier.core.{Authentication, Publication}
+import coursier.extra.Typelevel
 import coursier.ivy.{IvyRepository, PropertiesPattern}
 import coursier.Keys._
 import coursier.Structure._
@@ -504,6 +505,8 @@ object Tasks {
 
       val userEnabledProfiles = mavenProfiles.value
 
+      val typelevel = scalaOrganization.value == Typelevel.typelevelOrg
+
       val startRes = Resolution(
         currentProject.dependencies.map(_._2).toSet,
         filter = Some(dep => !dep.optional),
@@ -517,7 +520,8 @@ object Tasks {
           userForceVersions ++
           forcedScalaModules(so, sv) ++
           interProjectDependencies.map(_.moduleVersion),
-        projectCache = parentProjectCache
+        projectCache = parentProjectCache,
+        mapDependencies = if (typelevel) Some(Typelevel.swap(_)) else None
       )
 
       if (verbosityLevel >= 2) {

sbt-coursier/src/sbt-test/sbt-coursier/typelevel-with-dependencies/build.sbt

@@ -0,0 +1,9 @@
+scalaVersion := "2.12.2-bin-typelevel-4"
+scalaOrganization := "org.typelevel"
+scalacOptions += "-Yinduction-heuristics"
+
+libraryDependencies ++= Seq(
+  "com.47deg" %% "freestyle" % "0.1.0",
+  // CrossVersion.patch not available in sbt 0.13.8
+  compilerPlugin("org.scalamacros" % "paradise_2.12.2" % "2.1.0")
+)

sbt-coursier/src/sbt-test/sbt-coursier/typelevel-with-dependencies/project/plugins.sbt

@@ -0,0 +1,11 @@
+{
+  val pluginVersion = sys.props.getOrElse(
+    "plugin.version",
+    throw new RuntimeException(
+      """|The system property 'plugin.version' is not defined.
+         |Specify this property using the scriptedLaunchOpts -D.""".stripMargin
+    )
+  )
+
+  addSbtPlugin("io.get-coursier" % "sbt-coursier" % pluginVersion)
+}

sbt-coursier/src/sbt-test/sbt-coursier/typelevel-with-dependencies/src/main/scala/Foo.scala

@@ -0,0 +1,5 @@
+import freestyle._
+
+@free trait Foo {
+  def bzz: FS[java.lang.String]
+}

sbt-coursier/src/sbt-test/sbt-coursier/typelevel-with-dependencies/test

@@ -0,0 +1 @@
+> compile