Allow multiple template bodies

src/parse/mod.rs

@@ -561,7 +561,7 @@ fn call(p: &mut Parser, callee: Expr) -> Option<Expr> {
         }
     };
 
-    if p.peek_direct() == Some(Token::LeftBracket) {
+    while p.peek_direct() == Some(Token::LeftBracket) {
         let body = template(p);
         args.items.push(CallArg::Pos(body));
     }

tests/typ/code/call.typ

@@ -20,6 +20,11 @@
 #f()[A]
 #f([A])
 
+#let g(a, b) = a + b
+#g[A][B]
+#g([A], [B])
+#g()[A][B]
+
 ---
 // Trailing comma.
 #test(1 + 1, 2,)