[commit: ghc] wip/T9291's head updated: Add a CSE pass to Stg (#9291) (e81ce91)

[git at git.haskell.org]

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

Branch 'wip/T9291' now includes:

     efc4a16 Allow timeout to kill entire process tree.
     7a13f1f Alpha-renaming and white space only
     f06b71a Fix a bug in ABot handling in CoreArity
     ea8f91d White space only
     9a4af2c Comments only
     11306d6 Ensure that even bottoming functions have an unfolding
     432f952 Float unboxed expressions by boxing
     793ddb6 Tiny refactor in CoreTidy
     75e8c30 Propagate evaluated-ness a bit more faithfully
     ee872d3 Removed dead code in DsCCall.mk_alt
     b4c3a66 Push coercions in exprIsConApp_maybe
     8712148 testsuite: Split out Windows allocations numbers for T12234
     f95e669 users-guide: Kill extraneous link
     8f89e76 rename: Don't require 'fail' in non-monadic contexts
     158530a Add caret diagnostics
     46a195f Use python3 for linters
     1b06231 Fix test for T12877
     94d2cce base: Override Foldable.{toList,length} for NonEmpty
     2689a16 Define MAP_ANONYMOUS on systems that only provide MAP_ANON
     e81ce91 Add a CSE pass to Stg (#9291)