*** See "THE NAMING STORY" in HsDecls ****
\begin{code}
-mkClassDecl (cxt, cname, tyvars) fds sigs mbinds
+mkClassDecl (cxt, cname, tyvars) fds sigs mbinds ats
= ClassDecl { tcdCtxt = cxt, tcdLName = cname, tcdTyVars = tyvars,
tcdFDs = fds,
tcdSigs = sigs,