Hi all I have been wrestling with something silly most of today. T12530 has the following splice in it, which has parens around the "(Maybe Int)". $([d| -- Test the Template Haskell pretty-printing for TypeApplications f = id @(Maybe Int) |]) the parsed source has these parens, but they are removed for the renamed source. I am modifying the pretty printer to be faithful to the original source, so when the renamed source is printed it has no parens, causing T12530 to fail. I have looked all over the source, and cannot see where the HsParTy is removed. Can anyone give me a pointer? See details here [1] My current work branch is here [2], but I am pretty sure there are no changes affecting this there. [1] http://lpaste.net/1624164315596587008 [2] https://github.com/alanz/ghc/tree/wip/T3384 Regards Alan