[clang] [C2y] Add octal prefixes, deprecate unprefixed octals (PR #131626)

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github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

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``````````bash
git-clang-format --diff e0223fa24aedf14895ea31beb87dac6d5a2137f0 b2315a141312ee7a33d211938b4fabc2d8cac41c --extensions c,h,cpp -- clang/test/C/C2y/n3353.c clang/include/clang/Lex/Lexer.h clang/lib/Lex/Lexer.cpp clang/lib/Lex/LiteralSupport.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/Lex/Lexer.cpp b/clang/lib/Lex/Lexer.cpp
index d2afbf30f1..7d16a106fd 100644
--- a/clang/lib/Lex/Lexer.cpp
+++ b/clang/lib/Lex/Lexer.cpp
@@ -3422,7 +3422,6 @@ void Lexer::DiagnoseDelimitedOrNamedEscapeSequence(SourceLocation Loc,
   Diags.Report(Loc, DiagId) << Named << !Opts.CPlusPlus;
 }
 
-
 std::optional<uint32_t> Lexer::tryReadNumericUCN(const char *&StartPtr,
                                                  const char *SlashLoc,
                                                  Token *Result) {

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https://github.com/llvm/llvm-project/pull/131626