// resolved (since deserialization won't call the constructor).
public void testConstructedTypes() throws Exception {
assertNoneType(new NAlias(null, null, null));
assertNoneType(new NAssert(null, null));
assertNoneType(new NAssign(null, null));
assertNoneType(new NAttribute(new NStr(), new NName("")));
assertNoneType(new NAugAssign(null, null, null));
assertNoneType(new NBinOp(null, null, null));
assertNoneType(new NBlock(null));
assertNoneType(new NBody((List<NNode>)null));
assertNoneType(new NBoolOp(null, null));
assertNoneType(new NBreak());
assertNoneType(new NCall(null, null, null, null, null));
assertNoneType(new NClassDef(null, null, null));
assertNoneType(new NCompare(null, null, null));
assertNoneType(new NComprehension(null, null, null));
assertNoneType(new NContinue());
assertNoneType(new NDelete(null));
assertNoneType(new NDict(null, null));
assertNoneType(new NEllipsis());
assertNoneType(new NExceptHandler(null, null, null));
assertNoneType(new NExec(null, null, null));
assertNoneType(new NExprStmt(null));
assertNoneType(new NFor(null, null, null, null));
assertNoneType(new NFunctionDef(null, null, null, null, null, null));
assertNoneType(new NGeneratorExp(null, null));
assertNoneType(new NGlobal(null));
assertNoneType(new NIf(null, null, null));
assertNoneType(new NIfExp(null, null, null));
assertNoneType(new NImport(null));
assertNoneType(new NImportFrom(null, null, null));
assertNoneType(new NIndex(null));
assertNoneType(new NKeyword(null, null));
assertNoneType(new NLambda(null, null, null, null, null));
assertNoneType(new NList(null));
assertNoneType(new NListComp(null, null));
assertNoneType(new NModule(null, 0, 1));
assertNoneType(new NName(""));
assertNoneType(new NNum(-1));
assertNoneType(new NPass());
assertNoneType(new NPlaceHolder());
assertNoneType(new NPrint(null, null));
assertNoneType(new NQname(null, new NName("")));
assertNoneType(new NRaise(null, null, null));
assertNoneType(new NRepr(null));
assertNoneType(new NReturn(null));
assertNoneType(new NSlice(null, null, null));
assertNoneType(new NStr());
assertNoneType(new NSubscript(null, null));
assertNoneType(new NTryExcept(null, null, null));
assertNoneType(new NTryFinally(null, null));
assertNoneType(new NTuple(null));
assertNoneType(new NUnaryOp(null, null));