[Clang] Adjust extension warnings for delimited sequences
authorCorentin Jabot <corentinjabot@gmail.com>
Wed, 13 Jul 2022 17:03:18 +0000 (19:03 +0200)
committerCorentin Jabot <corentinjabot@gmail.com>
Thu, 14 Jul 2022 05:50:58 +0000 (07:50 +0200)
commit6882ca9aff076738bbffd68f73892187519554f8
treed55d55fecfb541415bc74390ba1b8344968770fc
parent18a910dfba9e3cfd3f09e448be3d6461f154ed41
[Clang] Adjust extension warnings for delimited sequences

WG21 approved delimited escape sequences and named escape
sequences.
Adjust the extension warnings accordingly, and update
the release notes.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D129664
clang/docs/ReleaseNotes.rst
clang/include/clang/Basic/DiagnosticLexKinds.td
clang/lib/Lex/Lexer.cpp
clang/lib/Lex/LiteralSupport.cpp
clang/test/Lexer/char-escapes-delimited.c
clang/test/Preprocessor/ucn-pp-identifier.c
clang/test/Sema/ucn-identifiers.c