private void assertEditDialogVisible(boolean visible) {
		assertEquals("Dialog " + (visible ? "not showing" : "showing") +
			"when it should be " + (visible ? "showing" : "not showing"), visible,
			runSwing(dialog::isShowing));
	}
Catches the issue where the user could not move a label within a
namespace under the Global namespace to directly under the Global
namespace.

see Tracker ID 901
Ghidra/Features/Base/src/test.slow/java/ghidra/app/plugin/core/label/AddEditDialoglTest.java