RFR 8074067: Cleanup in java.base/share/native/libjava/Bits.c

[Ivan Gerasimov]

Thank you Alan for review!

>>
> As you've noted, there is no need to update xxxAddr because the 
> position is updated during swapping copy. That looks okay to me.
>
> Only updating size for the last chunk is okay too, but that a bit of 
> coin toss as to whether to change this as the current code is easy to 
> read. The stale comment should be removed of course.
>
I agree that readability is important.
Below is the updated webrev.  I couldn't resist to making it a bit 
shorter, though :)

BUGURL: https://bugs.openjdk.java.net/browse/JDK-8074067
WEBREV: http://cr.openjdk.java.net/~igerasim/8074067/1/webrev/

I checked that the source can be built on all platforms, despite of the 
warning in the comments.

Sincerely yours,
Ivan