[Git][ghc/ghc][wip/marge_bot_batch_merge_job] 7 commits: Fix error message location in tcCheckPatSynDecl

[Marge Bot]

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


Commits:
711929e6 by Simon Peyton Jones at 2020-10-23T02:42:59-04:00
Fix error message location in tcCheckPatSynDecl

Ticket #18856 showed that we were failing to set the right location
for an error message.  Easy to fix, happily.

Turns out that this also improves the error location in test T11010,
which was bogus before but we had never noticed.

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730bb590 by Ben Gamari at 2020-10-23T02:43:33-04:00
cmm: Add Note reference to ForeignHint
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3708933f by Vladislav Zavialov at 2020-10-23T13:54:02+03:00
Version bump: base-4.16 (#18712)

Also bumps upper bounds on base in boot libraries (incl. submodules).

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58e4aba8 by Ben Gamari at 2020-10-26T12:18:07-04:00
build system: Clean mingw tarballs

Tamar noticed in !4293 that the build systems fail to clean up the mingw
tarballs directory (`ghc-tarballs`). Fix this in both the make build
system and Hadrian.

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8e1db39e by Simon Peyton Jones at 2020-10-26T12:18:07-04:00
Fix two constraint solving problems

This patch fixes two problems in the constraint solver.

* An actual bug #18555: we were floating out a constraint to eagerly,
  and that was ultimately fatal.  It's explained in
  Note [Do not float blocked constraints] in GHC.Core.Constraint.

  This is all very delicate, but it's all going to become irrelevant
  when we stop floating constraints (#17656).

* A major performance infelicity in the flattener.  When flattening
  (ty |> co) we *never* generated Refl, even when there was nothing
  at all to do.  Result: we would gratuitously rewrite the constraint
  to exactly the same thing, wasting work.  Described in #18413, and
  came up again in #18855.

  Solution: exploit the special case by calling the new function
  castCoercionKind1.  See Note [castCoercionKind1] in
  GHC.Core.Coercion

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808aaef6 by Sergei Trofimovich at 2020-10-26T12:18:09-04:00
ghc.mk: amend 'make sdist'

Noticed 'make sdist' failure seen as:

```
"rm" -rf sdistprep/ghc/ghc-9.1.0.20201020/hadrian/_build/ (SRC_DIST_GHC_DIR)/hadrian/dist-newstyle/
/bin/sh: -c: line 0: syntax error near unexpected token `('
```

commit 9657f6f34
("sdist: Include hadrian sources in source distribution")
added a new cleanup path without a variable expantion.

The change adds variable reference. While at it move directory
cleanup to a separate statement.

Amends #18794

Signed-off-by: Sergei Trofimovich <slyfox at gentoo.org>

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29cf0054 by David Eichmann at 2020-10-26T12:18:11-04:00
Use config.run_ways for multi_compile_and_run tests

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30 changed files:

- compiler/GHC/Cmm/Type.hs
- compiler/GHC/Core/Coercion.hs
- compiler/GHC/Core/FamInstEnv.hs
- compiler/GHC/Core/TyCo/Rep.hs
- compiler/GHC/Core/Unify.hs
- compiler/GHC/Tc/Solver.hs
- compiler/GHC/Tc/Solver/Flatten.hs
- compiler/GHC/Tc/TyCl/PatSyn.hs
- compiler/ghc.cabal.in
- ghc.mk
- hadrian/src/Rules/Clean.hs
- libraries/array
- libraries/base/base.cabal
- libraries/base/changelog.md
- libraries/deepseq
- libraries/directory
- libraries/filepath
- libraries/ghc-boot-th/ghc-boot-th.cabal.in
- libraries/ghc-boot/ghc-boot.cabal.in
- libraries/ghc-compact/ghc-compact.cabal
- libraries/ghci/ghci.cabal.in
- libraries/haskeline
- libraries/hpc
- libraries/parsec
- libraries/process
- libraries/stm
- libraries/template-haskell/template-haskell.cabal.in
- libraries/terminfo
- libraries/unix
- testsuite/driver/testlib.py


The diff was not included because it is too large.


View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/18f6252303656ca58a1b755f33bbe8ea9d6eb523...29cf005404d976672233e2704dfcf3820171340d

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View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/18f6252303656ca58a1b755f33bbe8ea9d6eb523...29cf005404d976672233e2704dfcf3820171340d
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