private void AddBreakpoint(int lineNo, string moduleName, string condition)
{
var newItem = new LispBreakpointInfo(lineNo, moduleName, condition);
var index = Breakpoints.FindIndex(elem => (elem.LineNo == lineNo) && (elem.ModuleName == moduleName));
if (index >= 0)
{
// replace existing item for this line
Breakpoints[index] = newItem;
}
else
{
Breakpoints.Add(newItem);
}
}