Fix #65

Author: tsuckow

src/main/scala/net/codingwell/scalaguice/TypeConversions.scala

@@ -62,7 +62,9 @@ private [scalaguice] object TypeConversions {
       case ExistentialType(_, underlying) => scalaTypeToJavaType(underlying, mirror)
       case ArrayType(argType) => arrayOf(scalaTypeToJavaType(argType, mirror, allowPrimative=true))
       case ClassType(symbol, args) => {
-        val rawType = mirror.runtimeClass(symbol)
+        //You would think `symbol` would be sufficient but in some cases (such as (=> Unit)) instead of
+        //resolving to `Function0[Unit]` You get Scala<byname> which isn't real and can't be located
+        val rawType = mirror.runtimeClass(scalaType.erasure.dealias.typeSymbol.asInstanceOf[ClassSymbol])
         val ownerType = findOwnerOf(symbol, mirror)
         if(symbol == symbolOf[Unit]) {
           classOf[scala.runtime.BoxedUnit]

src/test/scala/net/codingwell/scalaguice/ScalaModuleSpec.scala

@@ -144,7 +144,7 @@ class ScalaModuleSpec extends WordSpec with Matchers {
     }
 
     //This test needs work to resolve #65
-    "allow binding by name to Unit" ignore {
+    "allow binding by name to Unit" in {
       try { 
       val foo:(=> Unit) => String = (a) => "dog"
       val module = new AbstractModule with ScalaModule {