[clang] [clang-format] Skip line splices when sorting C++ includes (PR #120680)

[Owen Pan via cfe-commits]

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@@ -3246,8 +3246,15 @@ tooling::Replacements sortCppIncludes(const FormatStyle &Style, StringRef Code,
   SmallVector<StringRef, 2> RawStringMatches;
   std::string RawStringTermination = ")\"";
 
-  for (;;) {
-    auto Pos = Code.find('\n', SearchFrom);
+  for (const auto Size = Code.size(); SearchFrom < Size;) {
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owenca wrote:

Because it's used in `SearchFrom < Size`. My previous version using `for (;;)` caused a crash in ToolingTests.

https://github.com/llvm/llvm-project/pull/120680