internal override void MarkSequencePoint(LambdaExpression method, MethodBase methodBase, ILGenerator ilg, DebugInfoExpression sequencePoint) {
MethodBuilder builder = methodBase as MethodBuilder;
if (builder != null) {
ilg.MarkSequencePoint(GetSymbolWriter(builder, sequencePoint.Document), sequencePoint.StartLine, sequencePoint.StartColumn, sequencePoint.EndLine, sequencePoint.EndColumn);
}
}