private void expandNode(GTreeNode node) {
		tree.expandPath(node);
		waitForTree();
	}
This directory is bin in eclipse; it will be a resources directory in the classpath when run
in batch mode.   The directory is one specifically created by and for this test.
@return class output directory
@throws FileNotFoundException Could not find class output directory
Ghidra/Features/Base/src/test.slow/java/ghidra/app/plugin/core/datamgr/DataTypeManagerPluginTest.java