List<?> getClipboardContents() {
		Clipboard clipboard = provider.getClipboard();
		GTreeNodeTransferable contents = (GTreeNodeTransferable) clipboard.getContents(this);
		return contents.getAllData();
	}
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