cl-ast: Cleanup

- Function bind is now one Pattern
- TyRef now allows &Ty (i.e. &[i32], &(char, bool)
- Range patterns (they cannot bind, only check whether a value is in range
- ArrayRep repeat has been reverted to usize, for now, until early consteval is implemented.

compiler/cl-parser/src/parser/prec.rs

@@ -203,7 +203,13 @@ fn exprkind_array_rep(p: &mut Parser) -> PResult<ExprKind> {
             value: first.into(),
             repeat: {
                 p.consume_peeked();
-                Box::new(expr(p, 0)?)
+                let value = p.match_type(TokenKind::Literal, Parsing::ArrayRep)?;
+                match value.data() {
+                    TokenData::Integer(size) => *size as usize,
+                    _ => {
+                        Err(p.error(ErrorKind::Unexpected(TokenKind::Literal), Parsing::ArrayRep))?
+                    }
+                }
             },
         }
         .into(),