[css-shadow-parts] Log several TODOs in the draft.

Author: tabatkins

css-shadow-parts-1/Overview.bs

@@ -47,7 +47,7 @@ into the component for it to do with as it will,
 these pseudo-elements allow components and the outside page
 to interact in safe, powerful ways,
 maintaining encapsulation
-without surrendering all control.
+without surrending all control.
 
 Motivation {#motivation}
 ------------------------
@@ -149,6 +149,14 @@ Each part mapping is one of:
     :: Ignored for error-recovery / future compat.
 </dl>
 
+Issue: Factor this out into an algorithm.
+
+Issue: The value in the map is a set of elements, not individual elements; need to properly append.
+
+Issue: Want a way to forward a name with the same name, without repeating the name (currently requires `foo => foo`).
+
+Issue: When doing prefixed-wildcard forwarding, should probably automatically exclude sub-parts that are manually forwarded.  With that, would be good to have a syntax to block forwarding of a sub-part (currently would require `foo => nonsense-name`).
+
 Note: It's okay to give a part multiple names,
 or map a sub-part to several names.
 The "part name" should be considered similar to a class,