RFR(XS): 8185112: [TESTBUG] Servicability tests cannot parse float if non US locale.

[Lindenmaier, Goetz]

Hi,

Some tests use Float.valueOf for String to float converting. If an other locale 
than US is used the test failed. We observed this on Mac.
Changed to use NumberFormat to work with all locales.

Please review this change. I please need a sponsor.
http://cr.openjdk.java.net/~goetz/wr17/8185112-macLocale/webrev.01/

Best regards,
  Goetz