Marge Bot pushed to branch master at Glasgow Haskell Compiler / GHC

Commits:

• d5ae6906
  by Adam Gundry at 2026-07-17T04:57:43-04:00

  Mark various language extension flags as deprecated (see #27329)
  
  The following language extensions are now deprecated:
  
   - AlternativeLayoutRule
   - AlternativeLayoutRuleTransitional
   - ParallelArrays
   - PolymorphicComponents
   - Rank2Types
  
  In addition, the warning `-Walternative-layout-rule-transitional`
  has been marked as deprecated, as it is emitted only under the
  deprecated extension `XAlternativeLayoutRuleTransitional`.
  

49 changed files:

• + changelog.d/T27329
• compiler/GHC/Driver/Flags.hs
• compiler/GHC/Driver/Session.hs
• compiler/GHC/Tc/Types/Rank.hs
• docs/users_guide/expected-undocumented-flags.txt
• docs/users_guide/exts/rank_polymorphism.rst
• docs/users_guide/exts/static_pointers.rst
• libraries/ghc-internal/ghc-internal.cabal.in
• testsuite/tests/backpack/should_compile/T13149.bkp
• testsuite/tests/determinism/determ017/A.hs
• testsuite/tests/ghci/scripts/T12005.script
• testsuite/tests/haddock/perf/Fold.hs
• testsuite/tests/indexed-types/should_fail/T7354.hs
• testsuite/tests/layout/layout001.stdout
• testsuite/tests/layout/layout002.stdout
• testsuite/tests/layout/layout003.stdout
• testsuite/tests/layout/layout004.stdout
• testsuite/tests/layout/layout005.stdout
• testsuite/tests/layout/layout006.stdout
• testsuite/tests/layout/layout007.stdout
• testsuite/tests/layout/layout008.stdout
• testsuite/tests/layout/layout009.stdout
• testsuite/tests/linear/should_compile/T1735Min.hs
• + testsuite/tests/parser/should_compile/T13087.stderr
• testsuite/tests/parser/should_fail/T8431.stderr
• testsuite/tests/parser/should_fail/readFail038.stderr
• testsuite/tests/perf/compiler/T3064.hs
• testsuite/tests/polykinds/T7594.hs
• testsuite/tests/programs/thurston-modular-arith/Main.hs
• testsuite/tests/rts/ipe/IpeStats/Fold.hs
• testsuite/tests/simplCore/should_compile/T11562.hs
• testsuite/tests/simplCore/should_run/T3591.hs
• testsuite/tests/typecheck/should_compile/DeepSubsumption02.hs
• testsuite/tests/typecheck/should_compile/T12507.hs
• testsuite/tests/typecheck/should_compile/T13951.hs
• testsuite/tests/typecheck/should_compile/T18920.hs
• testsuite/tests/typecheck/should_compile/T2595.hs
• testsuite/tests/typecheck/should_compile/T7541.hs
• testsuite/tests/typecheck/should_fail/T6069.stderr
• testsuite/tests/typecheck/should_fail/T7368a.hs
• testsuite/tests/typecheck/should_run/T1735_Help/Basics.hs
• testsuite/tests/typecheck/should_run/T3731-short.hs
• testsuite/tests/typecheck/should_run/T3731.hs
• testsuite/tests/typecheck/should_run/church.hs
• testsuite/tests/typecheck/should_run/tcrun008.hs
• testsuite/tests/typecheck/should_run/tcrun017.hs
• testsuite/tests/typecheck/should_run/tcrun026.hs
• testsuite/tests/typecheck/should_run/tcrun035.hs
• testsuite/tests/typecheck/should_run/tcrun036.hs

The diff was not included because it is too large.