[clang] [clang][Sema] Fix false positive -Wshadow with structured binding captures (PR #157667)

[Mariya Podchishchaeva via cfe-commits]

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@@ -8410,6 +8410,7 @@ NamedDecl *Sema::getShadowedDeclaration(const VarDecl *D,
     return nullptr;
 
   NamedDecl *ShadowedDecl = R.getFoundDecl();
+
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Fznamznon wrote:

Seems unrelated.
```suggestion
```

https://github.com/llvm/llvm-project/pull/157667