[GHC] Batch modify: #10670, #10632, #10463, #10570, #10561, #10351, ...

Batch modification to #10670, #10632, #10463, #10570, #10561, #10351, #9665, #10573, #10414, #10519, #10569, #10420, #10503, #10533, #10211, #10485, #10474, #10461, #10466, #10423, #8292 by thomie: milestone to 8.0.1 -- Tickets URL: http://ghc.haskell.org/trac/ghc/query?id=10670%2C10632%2C10463%2C10570%2C105... GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler