Maybe this is a bug?

examples/helloworld/BUILD

@@ -27,17 +27,24 @@ java_binary(
     ],
 )
 
+kotlin_library(
+    name = "foo",
+    srcs = ["foo.kt"],
+)
+
 # A simple kotlin rule that defines "data classes"
 kotlin_library(
     name = "rules",
     srcs = ["rules.kt"],
-    java_deps = [":milk"]
+    java_deps = [":milk"],
+    deps = [":foo"],
 )
 
 # A simple java class that defines soy milk
 java_library(
     name = "milk",
     srcs = ["SoyMilk.java"],
+    # UNCOMMENT ME TO SEE Foo in included deps = [":foo_kt"],
 )
 
 # A java rule that depends on a kotlin rule (using kotlin within traditional java)

examples/helloworld/foo.kt

@@ -0,0 +1,5 @@
+package examples.helloworld
+
+data class Foo(
+    val name: String
+)

examples/helloworld/main.kt

@@ -8,6 +8,8 @@ annotation class Feature1_2TestAnnotation(val value: Array<String>)
 val boom = "yaay"
 
 fun main(args : Array<String>) {
+	val foo = KotlinBinaryRule("foo")
+	println(foo.name)
 	println(Joiner.on(' ').join(arrayOf("I", "am", "Kotlin!", "......")))
 	println(Joiner.on(' ').join(arrayOf("...", "But", "what", "is", "soy", "milk?")))
 	println(SoyMilk())

examples/helloworld/rules.kt

@@ -7,7 +7,9 @@ data class KotlinLibraryRule(
 )
 
 data class KotlinBinaryRule(
-	val name: String,
+	val name: Foo,
 	val jars: List<String> = listOf<String>(),
 	val deps: List<String> = listOf<String>()
-)
+) {
+	constructor (name:String) : this(Foo(name))
+}