[GHC] #9299: GHCi type inference error

[GHC]

#9299: GHCi type inference error
-------------------------------------+------------------------------------
        Reporter:  erikd             |            Owner:
            Type:  bug               |           Status:  new
        Priority:  normal            |        Milestone:
       Component:  GHCi              |          Version:  7.6.3
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  Other             |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by darchon):

 And the above is weird. The release notes for 7.8.1 state:
 {{{
 The monomorphism restriction is now turned off by default in GHCi.
 }}}
 So I would expect that:
 {{{
 ghci-7.8.3 test.hs
 }}}
 and
 {{{
 ghci-7.8.3 -XNoMonomorphismRestriction test.hs
 }}}
 Would behave the same, that is, give an error.

 Otherwise I don't understand the release notes. What's the difference
 between having the monomorphism restriction turned off by default, and
 running with -XNoMonomorphismRestriction? If there is a difference, this
 should be documented more clearly in the release notes.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9299#comment:6>
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