[GHC] #10688: Incorrect program produced, different result with equivalent code

[GHC]

#10688: Incorrect program produced, different result with equivalent code
-------------------------------------+-------------------------------------
        Reporter:  Ideophage         |                   Owner:
            Type:  bug               |                  Status:  closed
        Priority:  lowest            |               Milestone:
       Component:  Compiler          |                 Version:  7.10.1
      Resolution:  invalid           |                Keywords:
Operating System:  Linux             |            Architecture:
 Type of failure:  Incorrect result  |  Unknown/Multiple
  at runtime                         |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
-------------------------------------+-------------------------------------

Comment (by simonpj):

 Interesting.  Now that you understand what went wrong, you could write a
 note explaining the trap you fell into, and share it with others.  It is,
 after all, rather surprising when you are told "omit a type signature and
 you get an infinite loop".

 Simon

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10688#comment:6>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler