[GHC] #2412: Interaction between type synonyms and .hs-boot causes panic "tcIfaceGlobal (local): not found"

[GHC]

#2412: Interaction between type synonyms and .hs-boot causes panic "tcIfaceGlobal
(local): not found"
----------------------------+-----------------------------------------------
 Reporter:  batterseapower  |          Owner:         
     Type:  bug             |         Status:  new    
 Priority:  normal          |      Milestone:  6.10.1 
Component:  Compiler        |        Version:  6.9    
 Severity:  normal          |     Resolution:         
 Keywords:                  |     Difficulty:  Unknown
 Testcase:                  |   Architecture:  Unknown
       Os:  Unknown         |  
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Comment (by simonpj):

 Thanks for the report.  I've investigated a little, and I think I know
 what's going on.  Needs more thought.

 Note to self: the write to `tcg_type_env_var` (line 783 in `TcRnDriver` is
 coming too late).

 Simon

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2412#comment:3>
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