private IEnumerable <IAssemblySymbol> GetAssemblySymbols(Compilation compilation, bool ignoreAssemblyKey)
{
if (ignoreAssemblyKey || compilation.Assembly.Identity.Name == _assemblyName)
{
yield return(compilation.Assembly);
}
// Might need keys for symbols from previous script compilations.
foreach (var assembly in compilation.GetReferencedAssemblySymbols())
{
if (ignoreAssemblyKey || assembly.Identity.Name == _assemblyName)
{
yield return(assembly);
}
}
}