[GHC] #15900: Can't boot with GHC 8.6.2

[GHC]

#15900: Can't boot with GHC 8.6.2
-------------------------------------+-------------------------------------
           Reporter:  osa1           |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:  8.6.3
          Component:  Compiler       |           Version:  8.6.2
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
-------------------------------------+-------------------------------------
 I just installed GHC 8.6.2 on a fresh Ubuntu 18.04 and cloned the repo.
 This is what I get when I do `make` without a `build.mk`:

 {{{
 "inplace/bin/ghc-stage2" -hisuf dyn_hi -osuf  dyn_o -hcsuf dyn_hc -fPIC
 -dynamic  -H32m -O -Wall      -hide-all-packages -i -iutils/haddock/driver
 -iutils/haddock/haddock-api/src -iutils/haddock/haddock-library/src
 -iutils/haddock/dist/build -Iutils/haddock/dist/build
 -iutils/haddock/dist/build/haddock/autogen
 -Iutils/haddock/dist/build/haddock/autogen    -optP-DIN_GHC_TREE -optP-
 include -optPutils/haddock/dist/build/haddock/autogen/cabal_macros.h
 -package-id Cabal-2.4.0.1 -package-id array-0.5.2.0 -package-id
 base-4.12.0.0 -package-id bytestring-0.10.8.2 -package-id
 containers-0.6.0.1 -package-id deepseq-1.4.4.0 -package-id
 directory-1.3.3.1 -package-id filepath-1.4.2.1 -package-id ghc-8.7
 -package-id ghc-boot-8.7 -package-id parsec-3.1.13.0 -package-id
 text-1.2.3.1 -package-id transformers-0.5.5.0 -package-id xhtml-3000.2.2.1
 -funbox-strict-fields -Wall -fwarn-tabs -O2 -threaded -XHaskell2010  -no-
 user-package-db -rtsopts  -Wno-unused-imports -Wno-deprecations
 -Wnoncanonical-monad-instances  -odir utils/haddock/dist/build -hidir
 utils/haddock/dist/build -stubdir utils/haddock/dist/build    -c
 utils/haddock/haddock-api/src/Haddock/Types.hs -o
 utils/haddock/dist/build/Haddock/Types.dyn_o

 utils/haddock/haddock-api/src/Haddock/Types.hs:385:37: error:
     • Data constructor not in scope:
         NotPromoted :: BasicTypes.PromotionFlag
     • Perhaps you want to add ‘NotPromoted’ to the import list
       in the import of ‘BasicTypes’
       (utils/haddock/haddock-api/src/Haddock/Types.hs:37:1-30).
     |
 385 |         tvar = L loc (HsTyVar NoExt NotPromoted (L loc name))
     |                                     ^^^^^^^^^^^

 utils/haddock/haddock-api/src/Haddock/Types.hs:386:47: error:
     • Data constructor not in scope:
         NotPromoted :: BasicTypes.PromotionFlag
     • Perhaps you want to add ‘NotPromoted’ to the import list
       in the import of ‘BasicTypes’
       (utils/haddock/haddock-api/src/Haddock/Types.hs:37:1-30).
     |
 386 |     mkType (UserTyVar _ name) = HsTyVar NoExt NotPromoted name
     |                                               ^^^^^^^^^^^
 utils/haddock/ghc.mk:20: recipe for target
 'utils/haddock/dist/build/Haddock/Types.dyn_o' failed
 make[1]: *** [utils/haddock/dist/build/Haddock/Types.dyn_o] Error 1
 Makefile:123: recipe for target 'all' failed
 make: *** [all] Error 2
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15900>
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