patch applied (ghc): Misc Hpc improvement to dynamic tracer output

[Andy Gill]

Tue Dec 12 16:19:17 PST 2006  andy at galois.com
  * Misc Hpc improvement to dynamic tracer output
  
   - Added HPCRIX support for passing tracer filename.
   - Added thread tracing support.
   - Cleaned up use of HsFFI.h
  

    M ./compiler/codeGen/CgHpc.hs -1 +5
    M ./includes/HsFFI.h -4
    M ./includes/RtsExternal.h +6
    M ./rts/Exception.cmm -1 +1
    M ./rts/Hpc.c -49 +66