Add TODO entry

TODO.md

@@ -45,6 +45,8 @@
 
 ## Language Syntax
 
+* a type like `type Klewos = Klewos { <fields> }` (i.e. a type with exactly one record-like variant) should be writeable as
+    `type Klewos = { <fields> }` as a shorthand, and should not require explicit matching.
 * the `type` declaration should have some kind of GADT-like syntax
 * use `let` sigil to indicate a variable in a pattern explicitly:
 
@@ -104,6 +106,8 @@ type enum {
 
 * inclusive/exclusive range syntax like .. vs ..=
 
+* Nameable patterns/ pattern synonyms cf. https://gitlab.haskell.org/ghc/ghc/-/wikis/pattern-synonyms
+
 
 ## Typechecking