[commit: ghc] master's head updated: Documentation for StgRetFun (6aaa065)

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

Branch 'master' now includes:

     cb2349a Documentation and refactoring in CCS related code
     74cd4ec Fix raiseAsync() UNDERFLOW_FRAME handling in profiling runtime
     19670bc Fix negative mutator time in GC stats in prof builds
     076f586 Don't invoke dataConSrcToImplBang on newtypes
     448f0e7 Fix checkPtrInArena
     a34ee61 Refactor GHCi UI to fix #11606, #12091, #15721, #16096
     4ad9ffd PPC NCG: Reduce memory consumption emitting string literals
     7b12b3f itimer: Don't free condvar until we know ticker is stopped
     ce11f6f rts: Use always-available locking operations in pthread Itimer implementation
     cb31b23 Update `Cabal` submodule
     0f3c04e testsuite: Show both test name and way in JUnit output
     ec752c4 Hadrian: Update README.md
     ef8fedc Clarify when to follow the instructions in doc/windows.md.
     2f07a97 Document the Shake Lint feature.
     69947d5 gitlab-ci: Cleanup Windows builds
     83a2206 Fix #16114 by adding a validity check to rnClsInstDecl
     e63518f Fix #16116 by removing badAssocRhs
     9dc56b6 Control validity-checking of type synonym applications more carefully
     3429ec8 Bump Cabal submodule
     36e3e74 @simonpj's suggested refactor
     ce2f77d hWaitForInput-accurate-socket test
     9fb744b GHCi ignores cmd line flags XMonomorphismRestr.. XNoExtendedDef..#10857
     f78048f Change comments as requested by code review. #10857
     da2d9cf Hadrian: configure packages with right 'htmldir'
     3f46cff PPC NCG: Refactor stack allocation code
     ea79978 Fix reference to stack code in comment
     c155ac9 Fix filename in comment again
     6a7a6b8 Introduce ghci command wrapper
     2f65025 Hadrian: support extra libraries + OSX rpath
     9fb2702 Create folder if missing for .hie files
     582a96f Support printing `integer-simple` Integers in GHCi
     6e320c2 Match `integer-simple`'s API with `integer-gmp`
     f7def74 Remove from `base` obsolete CPP for `integer-gmp`
     d2eb344 Fix tests for `integer-simple`
     a303695 try to fix CI
     236abdb rts: Allow heap prof by closure type in prof way
     61f178b doc: reorder heap profiling information in +RTS -?
     6acb36d doc: behaviour of +RTS -h depends on profiling
     ad5075d crosslink hadrian/README.md and hadrian/doc/make.md
     78ae2d5 typo
     7218270 Switch to the untracked version of getDirectoryFiles when scanning for GMP objects
     bfb3e30 Disable Shake Lint by default.
     8d594be Hadrian: Use the Cabal build script on Windows by default
     4204ed5 Fix typo in maybeToList documentation
     fe1f97c Revert "Fix typo in maybeToList documentation"
     46d46ed Improve clarity of documentation for maybeToList
     2e05912 Hadrian: handle Haddock's resource directory
     8765c1e Make sure 'haddock' package also copies resources
     6aaa065 Documentation for StgRetFun