JIT: call IsVNNeverNegative in IsNeverNegative (dotnet#110118)

Author: EgorBo

src/coreclr/jit/gentree.cpp

@@ -30570,8 +30570,17 @@ bool GenTree::IsNeverNegative(Compiler* comp) const
         }
     }
 
-    // TODO-Casts: extend IntegralRange to handle constants
-    return IntegralRange::ForNode(const_cast<GenTree*>(this), comp).IsNonNegative();
+    if (IntegralRange::ForNode(const_cast<GenTree*>(this), comp).IsNonNegative())
+    {
+        return true;
+    }
+
+    if ((comp->vnStore != nullptr) && comp->vnStore->IsVNNeverNegative(gtVNPair.GetConservative()))
+    {
+        return true;
+    }
+
+    return false;
 }
 
 //------------------------------------------------------------------------