[GHC] #7044: reject reading rationals with exponent notation

[GHC]

#7044: reject reading rationals with exponent notation
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              Reporter:  maeder      |            Owner:
                  Type:  bug         |           Status:  new
              Priority:  normal      |        Milestone:  7.10.1
             Component:  Compiler    |          Version:  7.4.2
            Resolution:              |         Keywords:
      Operating System:              |     Architecture:  Unknown/Multiple
  Unknown/Multiple                   |       Difficulty:  Unknown
       Type of failure:              |       Blocked By:
  None/Unknown                       |  Related Tickets:  #5692,#7266,#9059
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Comment (by thomie):

 The problem is that ghc runs out of memory at compile time, see #5692.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7044#comment:9>
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