VisitMethodSymbols.cs

public class MethodSymbolVisitor : SymbolVisitor
{
    //NOTE: We have to visit the namespace's children even though
    //we don't care about them. :(
    public override void VisitNamespace(INamespaceSymbol symbol)
    {
        foreach(var child in symbol.GetMembers())
        {
            child.Accept(this);
        }
    }
    
    //NOTE: We have to visit the named type's children even though
    //we don't care about them. :(
    public override void VisitNamedType(INamedTypeSymbol symbol)
    {
        foreach(var child in symbol.GetMembers())
        {
            child.Accept(this);
        }
    }

    public override void VisitMethod(IMethodSymbol symbol)
    {
        Console.WriteLine(symbol);
    }
}