[clang] [clang-tools-extra] [clangd] Add InsertReplaceEdit for code completion (PR #187623)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp,h -- clang-tools-extra/clangd/ClangdLSPServer.cpp clang-tools-extra/clangd/CodeComplete.cpp clang-tools-extra/clangd/CodeComplete.h clang-tools-extra/clangd/Protocol.cpp clang-tools-extra/clangd/Protocol.h clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp clang/include/clang/Lex/Lexer.h clang/lib/Lex/Lexer.cpp clang/unittests/Lex/LexerTest.cpp --diff_from_common_commit
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``````````diff
diff --git a/clang-tools-extra/clangd/CodeComplete.cpp b/clang-tools-extra/clangd/CodeComplete.cpp
index c58ef139b..f5882abb9 100644
--- a/clang-tools-extra/clangd/CodeComplete.cpp
+++ b/clang-tools-extra/clangd/CodeComplete.cpp
@@ -2275,7 +2275,8 @@ CompletionPrefix guessCompletionPrefix(llvm::StringRef Content,
 }
 
 // If Offset is inside what looks like argument comment (e.g.
-// "/*^*/" or "/* foo = ^*/"), returns the offset pointing past the closing "*/".
+// "/*^*/" or "/* foo = ^*/"), returns the offset pointing past the closing
+// "*/".
 static std::optional<unsigned>
 maybeFunctionArgumentCommentEnd(const PathRef FileName, const unsigned Offset,
                                 const llvm::StringRef Content,

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https://github.com/llvm/llvm-project/pull/187623