[GHC] #8199: Get rid of HEAP_ALLOCED

[GHC]

#8199: Get rid of HEAP_ALLOCED
----------------------------+----------------------------------------------
        Reporter:  ezyang   |            Owner:  ezyang
            Type:  feature  |           Status:  new
  request                   |        Milestone:  7.10.1
        Priority:  normal   |          Version:  7.7
       Component:           |         Keywords:
  Compiler                  |     Architecture:  Unknown/Multiple
      Resolution:           |       Difficulty:  Project (more than a week)
Operating System:           |       Blocked By:  5435
  Unknown/Multiple          |  Related Tickets:
 Type of failure:           |
  None/Unknown              |
       Test Case:           |
        Blocking:           |
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Comment (by ezyang):

 Yeah, I'm going to try to fix both.

 As for the stats, on a perf build on GHC 7.8, I see:

 {{{
 T3294 max_bytes_used  37702264
 T4801 bytes_allocated 429277160
 T3064 bytes_allocated 346679176
 T6048 bytes_allocated 120594240
 }}}

 In fact, some of these tests are presently failing validate on a clean
 branch for me. So it seems the only real problem here is T3294 (where we
 have almost doubled the max bytes used).

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8199#comment:30>
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