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ghci freezes in multiline when passed a closing paren

Prelude> :set +m
Prelude> )

Never returns.

Patch attached. John's code was buggy and reachable, apparently.

Trac metadata
Trac field Value
Version 7.6.3
Type Bug
TypeOfFailure OtherFailure
Priority high
Resolution Unresolved
Component GHCi
Test case
Differential revisions
BlockedBy
Related
Blocking
CC hvr, mihaly.barasz@google.com
Operating system
Architecture
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