[clang] [clang-repl] Fix struct value printing for clang-repl in C mode (PR #165538)

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<!--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/Interpreter/InterpreterValuePrinter.cpp clang/test/Interpreter/pretty-print.c --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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<details>
<summary>
View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/Interpreter/InterpreterValuePrinter.cpp b/clang/lib/Interpreter/InterpreterValuePrinter.cpp
index 1e9777f34..cfa50ee90 100644
--- a/clang/lib/Interpreter/InterpreterValuePrinter.cpp
+++ b/clang/lib/Interpreter/InterpreterValuePrinter.cpp
@@ -411,7 +411,8 @@ public:
   }
 
   InterfaceKind VisitReferenceType(const ReferenceType *Ty) {
-    ExprResult AddrOfE = S.CreateBuiltinUnaryOp(SourceLocation(), UO_AddrOf, E->IgnoreImpCasts());
+    ExprResult AddrOfE = S.CreateBuiltinUnaryOp(SourceLocation(), UO_AddrOf,
+                                                E->IgnoreImpCasts());
     assert(!AddrOfE.isInvalid() && "Can not create unary expression");
     Args.push_back(AddrOfE.get());
     return InterfaceKind::NoAlloc;

``````````

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https://github.com/llvm/llvm-project/pull/165538