haskell-suite/haskell-src-exts — pull request #116 by Laar (2014-05-18 20:11:06+00:00)
Title: Improves the internaError message of ExactPrint.

While debugging for #115 I found that the message printed by `internalError` in `Annotated/ExactPrint` is quite unhelpful. This pull request contains a more helpful message to a user indicating the possible causes of the error and a location.