[GHC] #2648: Report out of date interface files robustly

[GHC]

#2648: Report out of date interface files robustly
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        Reporter:  simonpj           |            Owner:
            Type:  feature request   |           Status:  new
        Priority:  lowest            |        Milestone:  7.6.2
       Component:  GHCi              |          Version:  7.6.3
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  GHCi crash        |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Changes (by simonmar):

 * cc: hvr (added)


Comment:

 @liyang: this should never happen during the normal course of developing
 and reloading a multi-module program in GHCi.  You're probably
 encountering a different bug with the same symptom.  We'd be really
 grateful if you could find a way to reproduce it; if so just open another
 ticket and dump your instructions in there.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/2648#comment:14>
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