Running 1 twice, followed by a typed hole, in GHCi causes internal error

Originally reported in #14996 (closed)##15037 (closed). You need GHC HEAD (i.e., more recent than GHC 8.4.1) to trigger this:

$ inplace/bin/ghc-stage2 --interactive
GHCi, version 8.5.20180413: http://www.haskell.org/ghc/  :? for help
Loaded GHCi configuration from /home/rgscott/.ghci
λ> 1
1
λ> 1
1
λ> _

<interactive>:1:1: error:
    GHC internal error: ‘Ghci1.it’ is not in scope during type checking, but it passed the renamer
    tcl_env of environment: []

And yes, running 1 //twice// seems to be critical to triggering this bug, for some reason.

Trac metadata

Trac field	Value
Version	8.5
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	GHCi
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