protected void createReference(Address from, Address to) {
		AddMemRefCmd addRefCommand =
			new AddMemRefCmd(from, to, RefType.READ, SourceType.USER_DEFINED, 0);
		boolean referenceAdded = applyCmd(program, addRefCommand);
		assertTrue("Unable to add reference to: " + to, referenceAdded);
	}
A base class for use by tests that exercise various types of
{@link LocationDescriptor}.
Ghidra/Features/Base/src/test.slow/java/ghidra/app/plugin/core/navigation/locationreferences/AbstractLocationReferencesTest.java