[GHC] #3314: Add compilation date to +RTS --info

[GHC]

#3314: Add compilation date to +RTS --info
-------------------------------------+-------------------------------------
        Reporter:  Orphi             |                Owner:  ak3n
            Type:  feature request   |               Status:  new
        Priority:  lowest            |            Milestone:
       Component:  Compiler          |              Version:  6.10.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D2460
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by ak3n):

 * owner:   => ak3n
 * failure:   => None/Unknown
 * differential:   => Phab:D2460


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/3314#comment:14>
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