RFR(M): 8073315: Enable gcc -Wtype-limits and fix upcoming issues.

[Kim Barrett]

On Mar 5, 2015, at 5:38 AM, Lindenmaier, Goetz <goetz.lindenmaier at sap.com> wrote:
> 
> New webrev:
> http://cr.openjdk.java.net/~goetz/webrevs/8073315-wUnsign/webrev.06/

Still looks good.