Add more declarations to TODO

Author: hoelzro

S26-TODO.md

@@ -59,6 +59,18 @@ By leading, trailing, and leading+trailing
   - [ ] attributes
   - [ ] parameters
   - [ ] variables (this can be NYI for now)
+  - [ ] macro
+  - [ ] knowhow
+  - [ ] native
+  - [ ] slang
+  - [ ] trusts
+  - [ ] only
+  - [ ] null
+  - [ ] anon
+  - [ ] state
+  - [ ] enum
+  - [ ] subset
+  - [ ] constant
 
 # Test that declarative comments on outer declarations don't affect inner ones