[GHC] Batch modify: #8977, #8848, #8954, #5987, #7602, #8228, #8376, #8736, #8746, #8935, #8974, #7655, #7695, #8620, #8728, #8731, #8761, #8866, #8976, #8981, #8683

[GHC]

Batch modification to #8977, #8848, #8954, #5987, #7602, #8228, #8376, #8736, #8746, #8935, #8974, #7655, #7695, #8620, #8728, #8731, #8761, #8866, #8976, #8981, #8683 by thoughtpolice:
milestone to 7.8.3

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Tickets URL: <http://ghc.haskell.org/trac/ghc/query?id=8977%2C8848%2C8954%2C5987%2C7602%2C8228%2C8376%2C8736%2C8746%2C8935%2C8974%2C7655%2C7695%2C8620%2C8728%2C8731%2C8761%2C8866%2C8976%2C8981%2C8683>
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