[clang] [clang-repl] Fix duplicate definition error for symbols in C mode (PR #164597)

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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:

<details>
<summary>
You can test this locally with the following command:
</summary>

``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp,c -- clang/lib/Sema/Sema.cpp clang/test/Interpreter/pretty-print.c --diff_from_common_commit
``````````

:warning:
The reproduction instructions above might return results for more than one PR
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.
:warning:

</details>

<details>
<summary>
View the diff from clang-format here.
</summary>

``````````diff
diff --git a/clang/lib/Sema/Sema.cpp b/clang/lib/Sema/Sema.cpp
index 2c81377ad..8ed3df7cf 100644
--- a/clang/lib/Sema/Sema.cpp
+++ b/clang/lib/Sema/Sema.cpp
@@ -1489,7 +1489,7 @@ void Sema::ActOnEndOfTranslationUnit() {
   // emitted to codegen, drop them to prevent re-emission in future PTUs.
   if (PP.isIncrementalProcessingEnabled())
     TentativeDefinitions.erase(TentativeDefinitions.begin(ExternalSource.get()),
-                                TentativeDefinitions.end());
+                               TentativeDefinitions.end());
 
   for (auto *D : ExternalDeclarations) {
     if (!D || D->isInvalidDecl() || D->getPreviousDecl() || !D->isUsed())

``````````

</details>


https://github.com/llvm/llvm-project/pull/164597