diplomacy: ValName captures val bindings for Nodes

src/main/scala/diplomacy/ValName.scala

@@ -0,0 +1,13 @@
+// See LICENSE.SiFive for license details.
+
+package freechips.rocketchip.diplomacy
+
+import scala.language.experimental.macros
+import freechips.rocketchip.macros.ValNameImpl
+
+case class ValName(name: String)
+
+object ValName
+{
+  implicit def materialize(implicit x: ValNameImpl): ValName = ValName(x.name)
+}