return null;
}
else {
// local
if(isLoad(node)) {
SourceVariableReadInstruction read = new SourceVariableReadImpl(node,
eclipseVariableQuery.sourceVariable(vb), eclipseVariableQuery);
if(AbstractAssignmentInstruction.checkIfCopyNeeded(node) != null) {
// need to explicitly copy accessed variable
CopyInstruction copy = new CopyInstructionImpl(
node,