[PATCH] D44826: Add -Wunused-using, a warning that finds unused using declarations.

[Carlos Alberto Enciso via Phabricator via cfe-commits]

CarlosAlbertoEnciso updated this revision to Diff 149261.
CarlosAlbertoEnciso added a comment.

This patch addresses the reviewers comments:

- Additional test cases to cover: -Wunused, -Wall and -Wno-unused-using
- Formatting in ReleaseNotes
- Removed the '-Wunused-usings' alias (GCC compatibility).
- Added individual warning messages for using-declaration, using-directive and namespace-alias.
- Fixed SVN attribute changes.


https://reviews.llvm.org/D44826

Files:
  docs/ReleaseNotes.rst
  include/clang/Basic/DiagnosticGroups.td
  include/clang/Basic/DiagnosticSemaKinds.td
  include/clang/Sema/ExternalSemaSource.h
  include/clang/Sema/MultiplexExternalSemaSource.h
  include/clang/Sema/Sema.h
  include/clang/Sema/SemaInternal.h
  include/clang/Serialization/ASTBitCodes.h
  include/clang/Serialization/ASTReader.h
  lib/Sema/MultiplexExternalSemaSource.cpp
  lib/Sema/Sema.cpp
  lib/Sema/SemaDecl.cpp
  lib/Sema/SemaDeclCXX.cpp
  lib/Serialization/ASTReader.cpp
  lib/Serialization/ASTWriter.cpp
  test/FixIt/fixit.cpp
  test/Modules/Inputs/module.map
  test/Modules/Inputs/warn-unused-using.h
  test/Modules/warn-unused-using.cpp
  test/PCH/cxx-templates.cpp
  test/SemaCXX/coreturn.cpp
  test/SemaCXX/referenced_alias_declaration_1.cpp
  test/SemaCXX/referenced_alias_declaration_2.cpp
  test/SemaCXX/referenced_using_all.cpp
  test/SemaCXX/referenced_using_declaration_1.cpp
  test/SemaCXX/referenced_using_declaration_2.cpp
  test/SemaCXX/referenced_using_directive.cpp
  test/SemaCXX/referenced_using_options.cpp

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