bed52fac0d
This replaces code that generates lots of temporary Int64 objects with code that works almost entirely usings SMI values in local variables. Printing generates numbers several digits at a time. Speedup is 10x for parsing and 100x for printing on dart2js and a little over 5x each on the VM. Printing produces hex digits in the same case as int.toString. R=cbracken@google.com Review URL: https://codereview.chromium.org//23441004 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@26760 260f80e4-7a28-3924-810f-c04153c831b5