deprecate HasTypeId::type_id()

Author: dwrensha

capnp/src/traits.rs

@@ -104,6 +104,10 @@ pub trait ImbueMut<'a> {
 pub trait HasTypeId {
     const TYPE_ID: u64;
 
+    #[deprecated(
+        since = "0.15.3",
+        note = "use the associated constant HasTypeId::TYPE_ID instead"
+    )]
     #[inline]
     fn type_id() -> u64 {
         Self::TYPE_ID