[GHC] #16096: let x = ... and x = ... are not the same in GHCi

[GHC]

#16096: let x = ... and x = ... are not the same in GHCi
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        Reporter:  osa1              |                Owner:  osa1
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:
       Component:  GHCi              |              Version:  8.6.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #11606            |  Differential Rev(s):  Phab:D5473
       Wiki Page:                    |
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Changes (by osa1):

 * related:   => #11606


Comment:

 Confirmed that Phab:5473 fixes #11606 as well.

 I suspect we can also remove the hack for #12091 because with this we
 treat `x = y` as `let x = y`, which doesn't have the problem mentioned in
 #12091, but I haven't verified this yet.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/16096#comment:6>
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