private void openSearchDialog() {

		ScalarSearchDialog dialog = new ScalarSearchDialog(this);
		dialog.show();

		ScalarSearchProvider provider = dialog.getProvider();
		if (provider != null) {
			providers.add(provider);
		}
	}
We need to be aware of changes to the program that could result in scalars being
added/removed. When this happens we want to update the appropriate providers.

@param ev the domain change event
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/scalartable/ScalarSearchPlugin.java