[cvs-nhc98] patch applied (hat): Accept named-field patterns on the hat-observe command-line. These will

Tue May 23 03:30:12 PDT 2006 malcolm * Accept named-field patterns on the hat-observe command-line. These will only match candidate expressions in the trace that were explicitly constructed with fields, not those that were constructed positionally. M ./src/hattools/Pattern.hs -3 +27