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

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@@ -400,6 +400,69 @@ constexpr TypeBuilderFunc getModel<bool &>() {
     return fir::ReferenceType::get(f(context));
   };
 }
+template <>
+constexpr TypeBuilderFunc getModel<unsigned short>() {
+  return getModel<short>();
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jeanPerier wrote:

Looks like this is "only" a lit test fallout (the generated FIR/LLVM IR is now different for 65 lit tests that test code that involve calling some runtime function with an unsigned argument). I agree it is best to fix that in a different PR (the behavior is already there).

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