[Git][ghc/ghc][wip/marge_bot_batch_merge_job] 8 commits: Only exit ghci in -e mode when :add command fails

[Marge Bot (@marge-bot)]

Marge Bot pushed to branch wip/marge_bot_batch_merge_job at Glasgow Haskell Compiler / GHC


Commits:
cf59f7cb by Claudio Bley at 2023-12-06T12:23:05-05:00
Only exit ghci in -e mode when :add command fails

Previously, when running `ghci -e ':add Sample.hs'` the process would
exit with exit code 1 if the file exists and could be loaded.

Fixes #24115

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d6a8de66 by Vladislav Zavialov at 2023-12-06T12:23:06-05:00
T2T in Patterns (#23739)

This patch implements the T2T (term-to-type) transformation in patterns.
Patterns that are checked against a visible forall can now be written
without the `type` keyword:

	  \(type t) (x :: t) -> ...   -- old
	  \t (x :: t) -> ...          -- new

The `t` binder is parsed and renamed as a term pattern (Pat), but
then undergoes a conversion to a type pattern (HsTyPat).
See the new function pat_to_type_pat in compiler/GHC/Tc/Gen/Pat.hs

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af097a96 by Sebastian Graf at 2023-12-06T12:23:06-05:00
Pmc: Fix SrcLoc and warning for incomplete irrefutable pats (#24234)

Before, the source location would point at the surrounding function definition,
causing the confusion in #24234.
I also took the opportunity to introduce a new `LazyPatCtx :: HsMatchContext _`
to make the warning message say "irrefutable pattern" instead of "pattern
binding".

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ed15b02e by Matthew Pickering at 2023-12-06T12:23:07-05:00
libraries: Bump filepath to 1.4.200.1 and unix to 2.8.4.0

Updates filepath submodule
Updates unix submodule

Fixes #24240

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ac036abe by Matthew Pickering at 2023-12-06T12:23:07-05:00
Submodule linter: Allow references to tags

We modify the submodule linter so that if the bumped commit is a
specific tag then the commit is accepted.

Fixes #24241

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9aca6bfa by Zubin Duggal at 2023-12-06T12:23:07-05:00
hadrian: set -Wno-deprecations for directory and Win32

The filepath bump to 1.4.200.1 introduces a deprecation warning.

See https://gitlab.haskell.org/ghc/ghc/-/issues/24240
    https://github.com/haskell/filepath/pull/206

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971084b0 by Sylvain Henry at 2023-12-06T12:23:20-05:00
Zap OccInfo on case binders during StgCse #14895 #24233

StgCse can revive dead binders:

  case foo of dead { Foo x y -> Foo x y; ... }
  ===>
  case foo of dead { Foo x y -> dead; ... } -- dead is no longer dead

So we must zap occurrence information on case binders.

Fix #14895 and #24233

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5a009236 by Sebastian Graf at 2023-12-06T12:23:20-05:00
Cpr: Turn an assertion into a check to deal with some dead code (#23862)

See the new `Note [Dead code may contain type confusions]`.

Fixes #23862.

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30 changed files:

- compiler/GHC/Core/Opt/CprAnal.hs
- compiler/GHC/Hs/Expr.hs
- compiler/GHC/HsToCore/Binds.hs
- compiler/GHC/HsToCore/Match.hs
- compiler/GHC/HsToCore/Pmc.hs
- compiler/GHC/HsToCore/Pmc/Utils.hs
- compiler/GHC/HsToCore/Quote.hs
- compiler/GHC/HsToCore/Utils.hs
- compiler/GHC/Stg/CSE.hs
- compiler/GHC/StgToCmm/Expr.hs
- compiler/GHC/Tc/Errors/Ppr.hs
- compiler/GHC/Tc/Errors/Types.hs
- compiler/GHC/Tc/Errors/Types/PromotionErr.hs
- compiler/GHC/Tc/Gen/App.hs
- compiler/GHC/Tc/Gen/Head.hs
- compiler/GHC/Tc/Gen/Pat.hs
- compiler/GHC/Types/Error/Codes.hs
- compiler/Language/Haskell/Syntax/Expr.hs
- ghc/GHCi/UI.hs
- hadrian/src/Settings/Warnings.hs
- libraries/filepath
- libraries/unix
- linters/lint-submodule-refs/Main.hs
- linters/linters-common/Linters/Common.hs
- testsuite/tests/ado/T22483.stderr
- + testsuite/tests/core-to-stg/T14895.hs
- + testsuite/tests/core-to-stg/T14895.stderr
- testsuite/tests/core-to-stg/all.T
- + testsuite/tests/cpranal/should_compile/T23862.hs
- + testsuite/tests/cpranal/should_compile/T23862.stderr


The diff was not included because it is too large.


View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/84477c363b10ae8e948a02be706286d9f97c273a...5a009236cb9c6a816d516a1c9290ae7009a644c2

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View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/84477c363b10ae8e948a02be706286d9f97c273a...5a009236cb9c6a816d516a1c9290ae7009a644c2
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