[cvs-nhc98] Added functions to HatTrace and HatExpressionTree, which

[Thorsten Brehm]

thorsten: Tue Sep 18 19:22:01 CEST 2001

Update of /usr/src/master/nhc/src/tracer/hat
In directory hinken:/tmp/cvs-serv26442

Modified Files:
	HatExpressionTree.hs HatTrace.gc Hatobserve.hs hatinterface.c 
Log Message:
Added functions to HatTrace and HatExpressionTree, which
previously wouldn't compile with NHC due to type-checking-bug.
- HatLimit introduced, allowing to derive trees of limited depth
from any HatRep class instance.