[GHC] #14963: ghci -fdefer-type-errors can't run IO action from another module

[GHC]

#14963: ghci -fdefer-type-errors can't run IO action from another module
-------------------------------------+-------------------------------------
        Reporter:  elaforge          |                Owner:  tdammers
            Type:  bug               |               Status:  patch
        Priority:  high              |            Milestone:  8.4.2
       Component:  GHCi              |              Version:  8.4.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
                                     |  ghci/should_run/T14963
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D4833
       Wiki Page:                    |  Phab:D4830
-------------------------------------+-------------------------------------

Comment (by Ben Gamari <ben@…>):

 In [changeset:"4a931665e41be2621abe4458b64190123109b746/ghc"
 4a931665/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="4a931665e41be2621abe4458b64190123109b746"
 Disable `-fdefer-out-of-scope-variables` in ghci.

 We have already disabled `-fdefer-type-errors` and
 `-fdefer-typed-holes` in ghci.
 This patch disables `-fdefer-out-of-scope-variables` as well.

 Fixes Trac #15259, as well as #14963.

 Test Plan: make test TEST="T15259 T14963a T14963b T14963c"

 Reviewers: bgamari, tdammers

 Reviewed By: tdammers

 Subscribers: tdammers, rwbarton, thomie, carter

 GHC Trac Issues: #15259, #14963

 Differential Revision: https://phabricator.haskell.org/D4830
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14963#comment:38>
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