[GHC] #13385: ghci fails to start when -XRebindableSyntax is passed

[GHC]

#13385: ghci fails to start when -XRebindableSyntax is passed
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        Reporter:  mgsloan           |                Owner:  (none)
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:
       Component:  GHCi              |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D3621
       Wiki Page:                    |
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Comment (by Ben Gamari <ben@…>):

 In [changeset:"2abe54e16cbd14cab27abdc7967e907753354d54/ghc"
 2abe54e1/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="2abe54e16cbd14cab27abdc7967e907753354d54"
 Make GHCi work when RebindableSyntax is enabled

 Previously, we were running some blocks of code at the start of every
 GHCi sessions which use do-notation, something which doesn't work well
 if you start GHCi with the `-XRebindableSyntax` flag on. This tweaks the
 code to avoid the use of do-notation so that `-XRebindableSyntax` won't
 reject it.

 Test Plan: make test TEST=T13385

 Reviewers: austin, bgamari

 Reviewed By: bgamari

 Subscribers: rwbarton, thomie

 GHC Trac Issues: #13385

 Differential Revision: https://phabricator.haskell.org/D3621
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13385#comment:3>
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