[clang] [clang-repl] Address error recovery fixing infinite loop while parsing (PR #127569)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp,h -- clang/test/Interpreter/repl-input-end-recovery.cpp clang/include/clang/Parse/Parser.h clang/lib/Parse/ParseCXXInlineMethods.cpp clang/lib/Parse/ParseDecl.cpp clang/lib/Parse/ParseDeclCXX.cpp clang/lib/Parse/ParseExprCXX.cpp clang/lib/Parse/ParseHLSL.cpp clang/lib/Parse/ParseObjc.cpp clang/lib/Parse/ParseOpenMP.cpp clang/lib/Parse/ParsePragma.cpp clang/lib/Parse/ParseStmt.cpp clang/lib/Parse/Parser.cpp --diff_from_common_commit
``````````

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in a stack if you are using a stacked PR workflow. You can limit the results by
changing `origin/main` to the base branch/commit you want to compare against.
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View the diff from clang-format here.
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``````````diff
diff --git a/clang/include/clang/Parse/Parser.h b/clang/include/clang/Parse/Parser.h
index 182a5f368..80353de0a 100644
--- a/clang/include/clang/Parse/Parser.h
+++ b/clang/include/clang/Parse/Parser.h
@@ -519,12 +519,12 @@ public:
   bool SkipUntil(ArrayRef<tok::TokenKind> Toks,
                  SkipUntilFlags Flags = static_cast<SkipUntilFlags>(0));
 
-  /// Determine if the given token marks the end of the current partial translation unit.
-  /// In incremental (REPL) mode, this checks for annot_repl_input_end.
-  /// In normal compilation, this checks for EOF.
+  /// Determine if the given token marks the end of the current partial
+  /// translation unit. In incremental (REPL) mode, this checks for
+  /// annot_repl_input_end. In normal compilation, this checks for EOF.
   static bool isAtInputEnd(const Token &T, const LangOptions &LO) {
     return T.is(tok::eof) ||
-          (LO.IncrementalExtensions && T.is(tok::annot_repl_input_end));
+           (LO.IncrementalExtensions && T.is(tok::annot_repl_input_end));
   }
 
 private:
diff --git a/clang/lib/Parse/ParsePragma.cpp b/clang/lib/Parse/ParsePragma.cpp
index 2119a2935..3347d8976 100644
--- a/clang/lib/Parse/ParsePragma.cpp
+++ b/clang/lib/Parse/ParsePragma.cpp
@@ -2823,8 +2823,7 @@ void PragmaSupportHandler<StartTok, EndTok, UnexpectedDiag>::HandlePragma(
   Tok.setKind(StartTok);
   Tok.setLocation(Introducer.Loc);
 
-  while (Tok.isNot(tok::eod) &&
-        !Parser::isAtInputEnd(Tok, PP.getLangOpts())) {
+  while (Tok.isNot(tok::eod) && !Parser::isAtInputEnd(Tok, PP.getLangOpts())) {
     Pragma.push_back(Tok);
     PP.Lex(Tok);
     if (Tok.is(StartTok)) {

``````````

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https://github.com/llvm/llvm-project/pull/127569