private boolean compareVarnodes(Varnode vn1, Varnode vn2) {
		if (!vn1.getAddress().equals(vn2.getAddress())) {
			return false;
		}
		return (vn1.getSize() == vn2.getSize());
	}
Obtain a specific CompilerSpec given a language id
@param langId is the 5 long colon separated language id
Ghidra/Test/IntegrationTest/src/test.slow/java/ghidra/program/model/lang/AbstractProtoModelTest.java