[commit: ghc] wip/hie-module: Implement -Wredundant-record-wildcards and -Wunused-record-wildcards (1962621)

[git at git.haskell.org]

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

On branch  : wip/hie-module
Link       : http://ghc.haskell.org/trac/ghc/changeset/19626218566ea709b5f6f287d3c296b0c4021de2/ghc

>---------------------------------------------------------------

commit 19626218566ea709b5f6f287d3c296b0c4021de2
Author: Matthew Pickering <matthewtpickering at gmail.com>
Date:   Mon Feb 11 09:24:04 2019 +0000

    Implement -Wredundant-record-wildcards and -Wunused-record-wildcards
    
    -Wredundant-record-wildcards warns when a .. pattern binds no variables.
    
    -Wunused-record-wildcards warns when none of the variables bound by a ..
    pattern are used.
    
    These flags are enabled by `-Wall`.


>---------------------------------------------------------------

19626218566ea709b5f6f287d3c296b0c4021de2
 compiler/hsSyn/HsPat.hs                            |  4 +-
 compiler/hsSyn/HsUtils.hs                          | 73 ++++++++++++++--------
 compiler/main/DynFlags.hs                          |  8 ++-
 compiler/parser/Parser.y                           | 10 +--
 compiler/parser/RdrHsSyn.hs                        | 14 ++---
 compiler/rename/RnBinds.hs                         | 10 ++-
 compiler/rename/RnExpr.hs                          |  8 ++-
 compiler/rename/RnPat.hs                           | 32 ++++++++--
 compiler/rename/RnUtils.hs                         | 66 +++++++++++++++++++
 compiler/typecheck/TcTypeable.hs                   |  4 +-
 docs/users_guide/8.10.1-notes.rst                  | 45 +++++++++++++
 docs/users_guide/using-warnings.rst                | 44 +++++++++++++
 libraries/base/GHC/IO/Handle.hs                    |  4 +-
 libraries/ghc-heap/GHC/Exts/Heap/Closures.hs       |  2 +-
 libraries/ghci/GHCi/TH.hs                          |  2 +-
 libraries/libiserv/src/Lib.hs                      |  2 +-
 testsuite/tests/rename/should_compile/T15957.hs    | 21 +++++++
 testsuite/tests/rename/should_compile/all.T        |  1 +
 testsuite/tests/rename/should_fail/T15957_Fail.hs  | 32 ++++++++++
 .../tests/rename/should_fail/T15957_Fail.stderr    | 36 +++++++++++
 testsuite/tests/rename/should_fail/T9437.stderr    |  2 +-
 testsuite/tests/rename/should_fail/all.T           |  1 +
 testsuite/tests/typecheck/should_compile/T4404.hs  |  1 +
 23 files changed, 362 insertions(+), 60 deletions(-)

Diff suppressed because of size. To see it, use:

    git diff-tree --root --patch-with-stat --no-color --find-copies-harder --ignore-space-at-eol --cc 19626218566ea709b5f6f287d3c296b0c4021de2