Tests can contain Strings that are too long about randoop HOT 3 CLOSED

An initial solution to this problem that chunks up a String like "aaaa...aaaa" 
(ellipses representing a very long string) into "aaaa" + ... + "aaaa" didn't do 
the job: the compiler still complains of a too-long string constant.

However, if we declare a static String constant x in the class and use x + ... 
+ x in the test, the class compiles successfully.

The latter solution requires an extension to the output format to allow for 
declaration of the static string constants; will take a bit longer to finish.

Fix: Randoop will not create assertions for strings greater than 10,000 
characters in length; behavior can be controlled via new option below

--assertion-string-maxlen=<int> - Maximum length of strings allowed in 
assertions.
    Note that String constants of length greater than 65KB may be
        rejected, according to the Java Virtual Machine specification.
        [default 10000]