[GHC] #15372: GHCi leaks in DEBUG mode

[GHC]

#15372: GHCi leaks in DEBUG mode
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           Reporter:  goldfire       |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:  8.6.1
          Component:  Compiler       |           Version:  8.4.3
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 The solution to ticket #15111 fixes some space leaks in GHCi. That ticket
 also installs `-fghci-leak-check` to the testsuite, so that we'll know
 when these leaks return. This is all good.

 However, the `DEBUG` compile still leaks in GHCi. This means that many
 ghci tests fail in the testsuite when using a `DEBUG` compiler.

 I thus have two requests:

 1. (hopefully quick) Teach the testsuite not to use `-fghci-leak-check` on
 a `DEBUG` compiler. I tried to do this myself but got lost, never having
 worked on the testsuite harness.

 2. Fix the leaks.

 If someone could post the fix to (1) in the short term (even if you don't
 commit it), I'd be grateful. This is holding me up.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15372>
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