@Override
	protected boolean isEnabledForContext(ListingActionContext context) {
		Variable v = getVariable(context);
		return (v != null) && (v.getSymbol() != null);
	}
Creates a new action with the given name and associated to the given
plugin.
@param plugin the plugin this action is associated with.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/function/EditOperandNameAction.java