@Test
	public void testUnsupportedString() throws Exception {
		String mangled = "__mh_execute_header";
		assertNull(demangler.demangle(mangled));
	}
Unit tests for the {@link SwiftDemangler}.  Requires Swift to be installed on the test system.
If it is not, these tests will be skipped.
Ghidra/Features/SwiftDemangler/src/test/java/ghidra/app/util/demangler/swift/SwiftDemanglerTest.java