internal static PropertyDeclarationSyntax ReplaceAbstractWithVirtual(PropertyDeclarationSyntax propertyDeclaration)
{
SyntaxTokenList modifiers = propertyDeclaration.Modifiers;
int index = modifiers.IndexOf(SyntaxKind.AbstractKeyword);
if (index != -1)
{
propertyDeclaration = propertyDeclaration.WithModifiers(modifiers.ReplaceAt(index, CSharpFactory.VirtualKeyword().WithTriviaFrom(modifiers[index])));
}
return(propertyDeclaration);
}