test for KT-606

compiler/testData/codegen/regressions/kt606.kt

@@ -0,0 +1,25 @@
+class StandardPipelineFactory(val config : ChannelPipeline.() -> Unit) : ChannelPipelineFactory {
+    override fun getPipeline() : ChannelPipeline {
+        val pipeline : ChannelPipeline = DefaultChannelPipeline()
+        pipeline.config()
+        return pipeline
+    }
+}
+
+trait ChannelPipeline  {
+  fun print(any: Any)
+}
+
+class DefaultChannelPipeline : ChannelPipeline {
+  override fun print(any: Any) = System.out?.println(any)
+
+}
+
+trait ChannelPipelineFactory {
+    fun getPipeline() : ChannelPipeline
+}
+
+fun box() : String {
+    StandardPipelineFactory({ print("OK") }).getPipeline()
+    return "OK"
+}

compiler/tests/org/jetbrains/jet/codegen/ExtensionFunctionsTest.java

@@ -76,4 +76,8 @@ public class ExtensionFunctionsTest extends CodegenTestCase {
         createEnvironmentWithMockJdk(CompilerSpecialMode.BUILTINS);
         blackBoxFile("extensionFunctions/nested2.kt");
     }
+    public void testKt606() throws Exception {
+        createEnvironmentWithMockJdk(CompilerSpecialMode.BUILTINS);
+        blackBoxFile("regressions/kt606.kt");
+    }
 }