wenzelm [Wed, 18 Mar 2009 20:03:01 +0100] rev 30572
Library.merge/OrdList.union: optimize the important special case where the tables coincide -- NOTE: this changes both the operational behaviour and the result for non-standard eq/ord notion;
wenzelm [Tue, 17 Mar 2009 19:53:57 +0100] rev 30568
strip_abss: always strip abstractions as far as possible, without keeping alternatives (which appear to be redundant anyway, but cause significant slowdown since discrimination nets collapse abstractions);