[cvs-nhc98] patch applied (hat): The unique selection has a unique highlight; shared occurrences of

[Malcolm Wallace]

Thu Mar 21 10:17:04 PST 2002  malcolm
  * The unique selection has a unique highlight; shared occurrences of
  the same subexpression have a different highlight.
  Also, refactor some compiler-dependent imports into a single module,
  FFIExtensions.

    A ./src/hattools/FFIExtensions.hs
    M ./src/hattools/HatTrail.hs -57 +74
    M ./src/hattools/LowLevel.hs -1 +1
    M ./src/hattools/SExp.hs -53 +58