[GHC] #11787: Infer HasCallStack where possible

[GHC]

#11787: Infer HasCallStack where possible
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        Reporter:  simonpj           |                Owner:  gridaphobe
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.3
      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:                    |
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Comment (by Simon Peyton Jones <simonpj@…>):

 In [changeset:"f2a2b79fa8d1c702b17e195a70734b06625e0153/ghc"
 f2a2b79f/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="f2a2b79fa8d1c702b17e195a70734b06625e0153"
 Deeply instantiate in :type

 See Trac #11376 and
  Note [Deeply instantiate in :type] in TcRnDriver

 Sadly this showed up one new problem (Trac #11786) and one opportunity
 (Trac #11787), so test T11549 is now marked expect-broken on these two.
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11787#comment:3>
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