protected void waitForGraphToLoad() {
		FGData graphData = getFunctionGraphData();
		assertNotNull(graphData);
		assertTrue("Unexpectedly received an empty FunctionGraphData", graphData.hasResults());
	}
Finds an edge that represents the given edge, which may no longer exist with
the same (==) edge instances.
Ghidra/Features/FunctionGraph/src/test.slow/java/ghidra/app/plugin/core/functiongraph/AbstractFunctionGraphTest.java