[clang] [flang] [flang] Add UNSIGNED (PR #113504)

[Daniel Chen via cfe-commits]

================
@@ -135,8 +141,12 @@ static constexpr TypePattern SubscriptInt{IntType, KindCode::subscript};
 
 // Match any kind of some intrinsic or derived types
 static constexpr TypePattern AnyInt{IntType, KindCode::any};
+static constexpr TypePattern AnyUnsigned{UnsignedType, KindCode::any};
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DanielCChen wrote:

I got a error from `-Wunused-const-variable`
```
llvm-project/flang/lib/Evaluate/intrinsics.cpp:144:30: error: unused variable 'AnyUnsigned' [-Werror,-Wunused-const-variable]
static constexpr TypePattern AnyUnsigned{UnsignedType, KindCode::any};
```

https://github.com/llvm/llvm-project/pull/113504