RFR: 8035648: Don't use Handle in java_lang_String::print

[Stefan Karlsson]

Hi all,

Please, review this change to let java_lang_String::print take a raw 
String oop instead of a Handle to a String oop. This change makes 
java_lang_String::print callable from code that has no HandleMark setup. 
E.g. when calling from a debugger.

Webrev:
http://cr.openjdk.java.net/~stefank/8035648/webrev.00/

RFE:
https://bugs.openjdk.java.net/browse/JDK-8035648

thanks,
StefanK