[clang] [clang] Don't use `VarDecl` of local variables as `ManglingContextDecl` for lambdas (PR #179035)

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Jan =?utf-8?q?Kokemüller?= <jan.kokemueller at gmail.com>
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In-Reply-To: <llvm.org/llvm/llvm-project/pull/179035 at github.com>


github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


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``````````bash
git-clang-format --diff origin/main HEAD --extensions cppm,cpp -- clang/test/Modules/pr178893.cppm clang/lib/Sema/SemaLambda.cpp --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.
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View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/Sema/SemaLambda.cpp b/clang/lib/Sema/SemaLambda.cpp
index cdefd6050..106633372 100644
--- a/clang/lib/Sema/SemaLambda.cpp
+++ b/clang/lib/Sema/SemaLambda.cpp
@@ -298,8 +298,8 @@ Sema::getCurrentMangleNumberContext(const DeclContext *DC) {
   // is a local variable, use the `DeclContext` containing the lambda expression
   // instead.
   if (VarDecl *Var = dyn_cast_or_null<VarDecl>(ManglingContextDecl);
-        Var && Var->isLocalVarDecl())
-      ManglingContextDecl = const_cast<Decl *>(cast<Decl>(DC));
+      Var && Var->isLocalVarDecl())
+    ManglingContextDecl = const_cast<Decl *>(cast<Decl>(DC));
 
   // Default arguments of member function parameters that appear in a class
   // definition, as well as the initializers of data members, receive special

``````````

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https://github.com/llvm/llvm-project/pull/179035