| Tests for ES6 class constructor return values | 
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 | On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | 
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 | Base class | 
 | PASS (new BaseNoReturn) instanceof BaseNoReturn is true | 
 | PASS (new BaseReturnImplicit) instanceof BaseReturnImplicit is true | 
 | PASS (new BaseReturnImplicit) !== undefined is true | 
 | PASS (new BaseReturnUndefined) instanceof BaseReturnUndefined is true | 
 | PASS (new BaseReturnUndefined) !== undefined is true | 
 | PASS (new BaseReturnThis) instanceof BaseReturnThis is true | 
 | PASS (new BaseReturnObject) instanceof BaseReturnObject is false | 
 | PASS typeof (new BaseReturnObject) === "object" is true | 
 | PASS (new BaseReturnObject2) instanceof BaseReturnObject is false | 
 | PASS (new BaseReturnObject2) === globalVariable is true | 
 | PASS (new BaseReturnString) instanceof BaseReturnString is true | 
 | PASS typeof (new BaseReturnString) !== "string" is true | 
 | PASS (new BaseReturnNumber) instanceof BaseReturnNumber is true | 
 | PASS typeof (new BaseReturnNumber) !== "number" is true | 
 | PASS (new BaseReturnNull) instanceof BaseReturnNull is true | 
 | PASS (new BaseReturnNull) !== null is true | 
 | PASS (new BaseReturnSymbol) instanceof BaseReturnSymbol is true | 
 | PASS (new BaseReturnSymbol) !== globalSymbol is true | 
 | PASS (new BaseThrow) threw exception Thrown Exception String. | 
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 | Function constructor (non-class) | 
 | PASS (new FunctionNoReturn) instanceof FunctionNoReturn is true | 
 | PASS (new FunctionReturnImplicit) instanceof FunctionReturnImplicit is true | 
 | PASS (new FunctionReturnImplicit) !== undefined is true | 
 | PASS (new FunctionReturnUndefined) instanceof FunctionReturnUndefined is true | 
 | PASS (new FunctionReturnUndefined) !== undefined is true | 
 | PASS (new FunctionReturnThis) instanceof FunctionReturnThis is true | 
 | PASS (new FunctionReturnObject) instanceof FunctionReturnObject is false | 
 | PASS typeof (new FunctionReturnObject) === "object" is true | 
 | PASS (new FunctionReturnObject2) instanceof FunctionReturnObject is false | 
 | PASS (new FunctionReturnObject2) === globalVariable is true | 
 | PASS (new FunctionReturnString) instanceof FunctionReturnString is true | 
 | PASS typeof (new FunctionReturnString) !== "string" is true | 
 | PASS (new FunctionReturnNumber) instanceof FunctionReturnNumber is true | 
 | PASS typeof (new FunctionReturnNumber) !== "number" is true | 
 | PASS (new FunctionReturnNull) instanceof FunctionReturnNull is true | 
 | PASS (new FunctionReturnNull) !== null is true | 
 | PASS (new FunctionReturnSymbol) instanceof FunctionReturnSymbol is true | 
 | PASS (new FunctionReturnSymbol) !== globalSymbol is true | 
 | PASS (new FunctionThrow) threw exception Thrown Exception String. | 
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 | Derived class calling super() | 
 | PASS (new DerivedNoReturn) instanceof DerivedNoReturn is true | 
 | PASS (new DerivedReturnImplicit) instanceof DerivedReturnImplicit is true | 
 | PASS (new DerivedReturnImplicit) !== undefined is true | 
 | PASS (new DerivedReturnUndefined) instanceof DerivedReturnUndefined is true | 
 | PASS (new DerivedReturnUndefined) !== undefined is true | 
 | PASS (new DerivedReturnThis) instanceof DerivedReturnThis is true | 
 | PASS (new DerivedReturnObject) instanceof DerivedReturnObject is false | 
 | PASS typeof (new DerivedReturnObject) === "object" is true | 
 | PASS (new DerivedReturnObject2) instanceof DerivedReturnObject2 is false | 
 | PASS (new DerivedReturnObject2) === globalVariable is true | 
 | PASS (new DerivedReturnString) threw exception TypeError: Derived constructors may only return object or undefined. | 
 | PASS (new DerivedReturnNumber) threw exception TypeError: Derived constructors may only return object or undefined. | 
 | PASS (new DerivedReturnNull) threw exception TypeError: Derived constructors may only return object or undefined. | 
 | PASS (new DerivedReturnSymbol) threw exception TypeError: Derived constructors may only return object or undefined. | 
 | PASS (new DerivedThrow) threw exception Thrown Exception String. | 
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 | Derived class not calling super() | 
 | PASS (new DerivedNoSuperNoReturn) threw exception ReferenceError: Must call super constructor in derived class before accessing 'this' or returning from derived constructor. | 
 | PASS (new DerivedNoSuperReturnImplicit) threw exception ReferenceError: DerivedNoSuperReturnImplicit is not defined. | 
 | PASS (new DerivedNoSuperReturnUndefined) threw exception ReferenceError: Must call super constructor in derived class before accessing 'this' or returning from derived constructor. | 
 | PASS (new DerivedNoSuperReturnThis) threw exception ReferenceError: Must call super constructor in derived class before accessing 'this' or returning from derived constructor. | 
 | PASS (new DerivedNoSuperReturnObject) did not throw exception. | 
 | PASS (new DerivedNoSuperReturnObject2) did not throw exception. | 
 | PASS (new DerivedNoSuperReturnString) threw exception TypeError: Derived constructors may only return object or undefined. | 
 | PASS (new DerivedNoSuperReturnNumber) threw exception TypeError: Derived constructors may only return object or undefined. | 
 | PASS (new DerivedNoSuperReturnNull) threw exception TypeError: Derived constructors may only return object or undefined. | 
 | PASS (new DerivedNoSuperReturnSymbol) threw exception TypeError: Derived constructors may only return object or undefined. | 
 | PASS (new DerivedNoSuperThrow) threw exception Thrown Exception String. | 
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 | Derived class with default constructor and base class returning different values | 
 | PASS (new DerivedDefaultConstructorWithBaseNoReturn) instanceof DerivedDefaultConstructorWithBaseNoReturn is true | 
 | PASS (new DerivedDefaultConstructorWithBaseReturnImplicit) instanceof DerivedDefaultConstructorWithBaseReturnImplicit is true | 
 | PASS (new DerivedDefaultConstructorWithBaseReturnUndefined) instanceof DerivedDefaultConstructorWithBaseReturnUndefined is true | 
 | PASS (new DerivedDefaultConstructorWithBaseReturnObject) instanceof DerivedDefaultConstructorWithBaseReturnObject is false | 
 | PASS typeof (new DerivedDefaultConstructorWithBaseReturnObject) === "object" is true | 
 | PASS (new DerivedDefaultConstructorWithBaseReturnObject2) instanceof DerivedDefaultConstructorWithBaseReturnObject2 is false | 
 | PASS (new DerivedDefaultConstructorWithBaseReturnObject2) === globalVariable is true | 
 | PASS (new DerivedDefaultConstructorWithBaseReturnThis) instanceof DerivedDefaultConstructorWithBaseReturnThis is true | 
 | PASS (new DerivedDefaultConstructorWithBaseReturnString) instanceof DerivedDefaultConstructorWithBaseReturnString is true | 
 | PASS (new DerivedDefaultConstructorWithBaseReturnNumber) instanceof DerivedDefaultConstructorWithBaseReturnNumber is true | 
 | PASS (new DerivedDefaultConstructorWithBaseReturnNull) instanceof DerivedDefaultConstructorWithBaseReturnNull is true | 
 | PASS (new DerivedDefaultConstructorWithBaseReturnSymbol) instanceof DerivedDefaultConstructorWithBaseReturnSymbol is true | 
 | PASS (new DerivedDefaultConstructorWithBaseThrow) threw exception Thrown Exception String. | 
 | PASS successfullyParsed is true | 
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 | TEST COMPLETE |