private static Expression GetValidEntryExistsTest(DictionaryEntryVariablePair dictionaryVariables)
{
if (dictionaryVariables.UseDirectValueAccess)
{
return(null);
}
var valueVariableAssignment = dictionaryVariables.GetEntryValueAssignment();
var valueNonNull = valueVariableAssignment.GetIsNotDefaultComparison();
return(valueNonNull);
}