[commit: ghc] wip/float-join-points's head updated: Wip on floating join points (07a86e6)

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Repository : ssh://git@git.haskell.org/ghc

Branch 'wip/float-join-points' now includes:

     2be55b8 Delete obsolete docs on GADT interacton with TypeApplications
     4a677f7 Remove section about ApplicativeDo & existentials (#13875)
     8adb84f Fix calculation in threadStackOverflow
     afac6b1 Fix typo
     6aa6a86 Fix typo
     add85cc Fix panic for `ByteArray#` arguments in CApiFFI foreign imports
     e3ba26f Implement new `compareByteArrays#` primop
     5984a69 Override default `clearBit` method impl for `Natural`
     843772b Enable testing 'Natural' type in TEST=arith011
     6cc232a Implement {set,clear,complement}BitBigNat primitives
     71a4235 configure: Fix CC version check on Apple compilers
     fd8b044 Levity polymorphic Backpack.
     5dab544 FreeBSD dtrace probe support
     7e790b3 rts: Label all threads created by the RTS
     8536b7f users-guide: Rework and finish debug flag documentation
     d7f4f41 users guide: Eliminate redundant :category: tags in debugging.rst
     c5da84d users-guide: Fix various warnings
     a69fa54 rts/posix: Ensure that memory commit succeeds
     d6c33da RtClosureInspect: Fix inspecting Char# on 64-bit big-endian
     366182a ghci: Include "Rts.h" before using TABLES_NEXT_TO_CODE
     9e3add9 Flags.hsc: Peek a CBool (Word8), not a Bool (Int32)
     aa98268 updateThunk: indirectee can be tagged
     21b7057 users-guide: Clarify -ddump-asm-regalloc-stages documentation
     6cb4642 Bump ghc-prim to 0.5.2.0 and update changelog
     ed48d13 Simplify, no functionality change
     2f43615 Fix grammaros in comments
     317aa96 Improve user’s guide around deriving
     74cd1be Don't deeply expand insolubles
     5a66d57 Better solving for representational equalities
     aba7786 Typofix in comment
     870020e whitespace only
     20ae22b Accept test output for #14350
     e023e78 Disable -XRebindableSyntax when running internal GHCi expressions
     101a8c7 Error when deriving instances in hs-boot files
     8846a7f Fix #14369 by making injectivity warnings finer-grained
     de8752e Export injectiveVarsOf{Binder,Type} from TyCoRep
     7ac22b7 User's guide: Fix the category of some flags
     3befc1a Bump arcanist-external-json-linter submodule
     1ba2851 Expose monotonic time from GHC.Event.Clock
     13758c6 Added a test for 'timeout' to be accurate.
     098dc97 Give a reference to Foreign.Concurrent.
     b6204f7 Untag the potential AP_STACK in stg_getApStackValzh
     2ca8cf6 Add Functor Bag instance
     afc04b2 Outputable: Add pprTraceException
     c1efc6e Comments and white space
     3acd616 Improve kick-out in the constraint solver
     e375bd3 Update record-wildcard docs
     99c61e2 Add stack traces on crashes on Windows
     bb537b2 nofib submodule: Fix a problem with fasta-c.c
     1e24a24 submodule nofib: Add digits-of-e1.faststdout
     052ec24 submodule nofib: Add digits-of-e2.faststdout
     b10a768 Comments only
     d1eaead Temporary fix to Trac #14380
     671b1ed User’s guide: Properly link to RTS flag -V
     8843a39 Include usg_file_hash in ghc --show-iface output
     3825b7e Remove the 'legroom' part of the timeout-accurate-pure test.
     b62097d Windows: Bump to GCC 7.2 for GHC 8.4
     e888a1f Revert "Windows: Bump to GCC 7.2 for GHC 8.4"
     561bdca Update Win32 version for GHC 8.4.
     f744261 ghc-cabal: Inline removed function from Cabal.
     2e16a57 Revert "ghc-cabal: Inline removed function ..."
     b1ad0bb Revert "Update Win32 version for GHC 8.4."
     61f1b46 Make language extensions their own category in the documentation
     bf83435 typecheck: Clarify errors mentioned in #14385
     bd53b48 Add info about Github pull requests.
     2a4c24e Make layLeft and reduceDoc stricter (#7258)
     980e127 Windows: Update the mirror script to generate hashes and use mirror fallback
     1c15d8e Fix space leak in BinIface.getSymbolTable
     df63668 Performance improvements linear regAlloc (#7258)
     f7f270e Implement `-Wpartial-fields` warning (#7169)
     821adee Fix a bug in 'alexInputPrevChar'
     2c23fff user-guide: Clarify default optimization flags
     4c06ccb base: Enable listToMaybe to fuse via foldr/build
     dbd81f7 Factor out readField (#14364)
     d91a6b6 Declare upstram repo location for hsc2hs
     160a491 users-guide: Disable index node generation
     9ae24bb configure: Add Alpine Linux to checkVendor
     a10c2e6 Don't use $SHELL in wrapper scripts
     355318c Add more pprTrace to SpecConstr (debug only)
     7d7d94f Fix an exponential-blowup case in SpecConstr
     41f9055 ApplicativeDo: handle BodyStmt (#12143)
     acd355a relnotes: Fix a few minor formatting issues
     faf60e8 Make tagForCon non-linear
     922db3d Manual: The -ddump-cmm-* flags had a wrong spelling in the manual
     97ca0d2 simplNonRecJoinPoint: Handle Shadowing correctly
     0e953da Implement a dedicated exitfication pass #14152
     3b784d4 base: Implement file locking in terms of POSIX locks
     cecd2f2 Add -falignment-sanitization flag
     7673561 Turn `compareByteArrays#` out-of-line primop into inline primop
     85aa1f4 Fix #14390 by making toIfaceTyCon aware of equality
     cca2d6b Allow packing constructor fields
     82bad1a A bit more tc-tracing
     1b115b1 Fix typo in accessor name
     ec356e8 Typofix in panic
     1569668 Typofixes in comments
     53700a9 minor wordsmithing
     201b5aa Catch a few more typos in comments
     609f284 Add Note [Setting the right in-scope set]
     af0aea9 core-spec: Add join points to formalism
     07a86e6 Wip on floating join points