@Override
	public Varnode newVarnode(int sz, Address addr) {
		Varnode vn = vbank.create(sz, addr, uniqId);
		uniqId += 1;
		return vn;
	}
return all PcodeOps associated with a particular instruction Address
@param addr -- Address of instruction generating PcodeOps
@return -- Iterator to PcodeOps
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/pcode/PcodeSyntaxTree.java