[GHC] #10613: Mechanism for checking that we only enter single-entry thunks once

[GHC]

#10613: Mechanism for checking that we only enter single-entry thunks once
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        Reporter:  bgamari           |                Owner:
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Other             |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Ben Gamari <ben@…>):

 In [changeset:"6c2c853b11fe25c106469da7b105e2be596c17de/ghc"
 6c2c853b/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="6c2c853b11fe25c106469da7b105e2be596c17de"
 Various ticky-related work

 this Diff contains small, self-contained changes as I work towards
 fixing #10613. It is mostly created to let harbormaster do its job, but
 feedback is welcome as well.

 Please do not merge this via arc; I’d like to push the individual
 patches as layed out here. I might push mostly trivial ones even without
 review, as long as the build passes.

 Reviewers: austin, bgamari

 Reviewed By: bgamari

 Subscribers: thomie

 Differential Revision: https://phabricator.haskell.org/D2014
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10613#comment:22>
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