Track uninitialized values of Ptr<Specialize<T>> inside type T wi…

…thout hang

Fixes shader-slang#4878
Track uninitialized values of `Ptr<Specialize<T>>` inside type `T` without hang

source/slang/slang-ir-use-uninitialized-values.cpp

@@ -180,6 +180,9 @@ namespace Slang
             // Avoid the recursive step if its a
             // recursive structure like a linked list
             IRType* ptype = ptr->getValueType();
+            if (auto spec = as<IRSpecialize>(ptype))
+                if(auto resolvedType = as<IRType>(resolveSpecialization(spec)))
+                    ptype = resolvedType;
             return (ptype != upper) && canIgnoreType(ptype, upper);
         }