[GHC] #10952: Use IPids instead of package keys in HPC tix files

[GHC]

#10952: Use IPids instead of package keys in HPC tix files
-------------------------------------+-------------------------------------
        Reporter:  mgsloan           |                Owner:
            Type:  bug               |               Status:  new
        Priority:  low               |            Milestone:
       Component:  Code Coverage     |              Version:  7.10.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by mgsloan):

 @Feuerbach Great!

 @ezyang Feel free to close this ticket if the changes you describe are
 sure to be in ghc 8.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10952#comment:10>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler