Updating runtime assemblies checks to ignore private assemblies

Author: fabiocav

src/WebJobs.Script/Description/DotNet/FunctionAssemblyLoadContext.cs

@@ -159,7 +159,10 @@ private static bool IsMinorMatchOrLowerPolicyEvaluator(AssemblyName requestedAss
         }
 
         private bool IsRuntimeAssembly(AssemblyName assemblyName)
-            => _runtimeAssemblies.Value.ContainsKey(assemblyName.Name);
+        {
+            return _runtimeAssemblies.Value.TryGetValue(assemblyName.Name, out ScriptRuntimeAssembly assembly)
+                && !string.Equals(assembly.ResolutionPolicy, PrivateDependencyResolutionPolicy, StringComparison.OrdinalIgnoreCase);
+        }
 
         private bool TryGetRuntimeAssembly(AssemblyName assemblyName, out ScriptRuntimeAssembly assembly)
             => _runtimeAssemblies.Value.TryGetValue(assemblyName.Name, out assembly);