RFR (S) 8136500: Integer/Long getChars and stringSize should be more idiomatic

[Aleksey Shipilev]

On 11/23/2015 04:34 PM, Ivan Gerasimov wrote:
> With this fixed patch:
> http://cr.openjdk.java.net/~igerasim/8136500/8136500-addition-1.patch
> all tests from test/lang pass.
> 
> Would you give it another chance?

Okay, but this is better be the last non-cosmetic change to board this
departing train:
  http://cr.openjdk.java.net/~shade/8136500/webrev.05/

This passes java/lang, java/util tests, and performance improvement is
still very good.

Thanks,
-Aleksey