prWithTySig expr sig)
  = hang (nest 2 (ppr_lexpr expr) <+> dcolon)
         4 (ppr sig)
ppr_expr (E
ppr_expr (ExprWithTySig expr sig)
  = hang (nest 2 (ppr_lexpr expr) <+> dcolon)
         4 (ppr sig)
ppr_expr (ExprWithTySig expr sig)
  = hang (nest 2 (ppr_lexpr expr) <+> dcolon)
         4 (ppr sig)