void openProgram() {
		ProgramManager pm = plugin.getTool().getService(ProgramManager.class);
		pm.openProgram(program.getDomainFile());
	}
A comparator to sort Symbols the same way as the SymbolNode sorts
Ghidra/Features/Base/src/test.slow/java/ghidra/app/plugin/core/symboltree/SymbolTreeTestUtils.java