private ImmutableArray <SymbolResult <IMethodSymbol> > GetViableExtensionMethods(
ImmutableArray <SymbolResult <IMethodSymbol> > methodSymbols,
SyntaxNode expression, CancellationToken cancellationToken)
{
return(GetViableExtensionMethodsWorker(methodSymbols, cancellationToken).WhereAsArray(
s => _owner.IsViableExtensionMethod(s.Symbol, expression, _semanticModel, _syntaxFacts, cancellationToken)));
}
