C#6 lose something

[CreateAndInject]

CADImport.zip

See: int index = gclass58_0.GList1_0.Count - 1;

C#5

// Class240
using System;

private void method_28(GStruct3 gstruct3_0, ref GClass40 gclass40_0, bool bool_9, bool bool_10, GClass58 gclass58_0)
{
	if (gclass40_0 == null)
	{
		gclass40_0 = new GClass40();
	}
	GStruct3 gstruct3_1 = new GStruct3(0.0, 0.0, 0.0);
	GClass94 gClass = new GClass94();
	gClass.GStruct3_0 = method_51(false, gstruct3_0, ref gstruct3_1);
	gstruct3_1 = gClass.GStruct3_0;
	gstruct3_1.double_2 = Convert.ToInt32(bool_9 && bool_10);
	gClass.GStruct3_0 = gstruct3_1;
	gclass40_0.vmethod_0(gClass);
	this.gstruct3_0 = gstruct3_0;
	if (gclass58_0 != null)
	{
		GStruct16 item = new GStruct16
		{
			double_0 = gstruct3_1.double_0,
			double_1 = gstruct3_1.double_1
		};
		int index = gclass58_0.GList1_0.Count - 1;
		gclass58_0.GList1_0[index].Add(item);
	}
}

C#6

// Class240
using System;

private void method_28(GStruct3 gstruct3_0, ref GClass40 gclass40_0, bool bool_9, bool bool_10, GClass58 gclass58_0)
{
	if (gclass40_0 == null)
	{
		gclass40_0 = new GClass40();
	}
	GStruct3 gstruct3_1 = new GStruct3(0.0, 0.0, 0.0);
	GClass94 gClass = new GClass94();
	gClass.GStruct3_0 = method_51(false, gstruct3_0, ref gstruct3_1);
	gstruct3_1 = gClass.GStruct3_0;
	gstruct3_1.double_2 = Convert.ToInt32(bool_9 && bool_10);
	gClass.GStruct3_0 = gstruct3_1;
	gclass40_0.vmethod_0(gClass);
	this.gstruct3_0 = gstruct3_0;
	if (gclass58_0 != null)
	{
		GStruct16 item = new GStruct16
		{
			double_0 = gstruct3_1.double_0,
			double_1 = gstruct3_1.double_1
		};
		int index;
		gclass58_0.GList1_0[index].Add(item);
	}
}

[CreateAndInject]

@siegfriedpammer This is a serious bug, can you check if ILSpy will remove codes otherwhere? If index is assigned otherwhere, I can't realize all without compilation errors.