remove stack of ifs in illegal state ex deob, get rid of using pcs in

frame to execute, need to remove more of this later, make jumps jump to
instructions, doesn't yet work

src/main/java/info/sigterm/deob/attributes/code/Instructions.java

@@ -99,12 +99,19 @@ public class Instructions
 	public void buildBlocks()
 	{
 		clearBlockGraph();
+		buildJumpGraph();
 		
 		Block current = null;
 		for (Instruction i : instructions)
 		{
-			if (current == null)
+			if (current == null || !i.from.isEmpty())
 			{
+				// this caused exception errors?
+				if (current != null)
+				{
+					current.end = current.instructions.get(current.instructions.size() - 1);
+					blocks.add(current);
+				}
 				current = new Block();
 				current.begin = i;
 				findExceptionInfo(current, i);