[clang] [clang] emit an error when the same identifier appears with both internal and external linkage in a translation unit (PR #78064)

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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 66786a79d6f622012879e94a92838449bf175a71 da9e05f5574bae712a14a3b467d5b3944418b421 -- clang/lib/Sema/SemaDecl.cpp clang/test/Sema/private-extern.c
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index 9990bb72a8..6598a72b44 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -4754,7 +4754,7 @@ void Sema::MergeVarDecl(VarDecl *New, LookupResult &Previous) {
     return New->setInvalidDecl();
   }
 
-  if (Old->getFormalLinkage() != New->getFormalLinkage() ) {
+  if (Old->getFormalLinkage() != New->getFormalLinkage()) {
     Diag(New->getLocation(), diag::err_multiple_linkage) << New->getDeclName();
     return New->setInvalidDecl();
   }

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https://github.com/llvm/llvm-project/pull/78064