[cvs-nhc98] patch applied (hat): Correct bug in creating constructor with labelled fields for new file format.

[Malcolm Wallace]

Tue Apr 16 08:34:05 PDT 2002  olaf
  * Correct bug in creating constructor with labelled fields for new file format.
  
  Forgot to update use of "undefined" in the construction. All variables including those for constants take two arguments for source position and parent.

    M ./src/compiler98/TraceTrans.hs -1 +3
    M ./src/hatlib/hat-c.c -4 +4
    M ./src/hattrans/TraceTrans.hs -1 +3