RFR(xxs): 8191739: [TESTBUG] test/hotspot/jtreg/runtime/LoadClass/TestResize.java fails to compile after JDK-8191580

[Calvin Cheung]

The fix is to add the following import:

36 import jdk.test.lib.Platform;


I've also re-arranged the import statements in alphabetical order.

Bug: https://bugs.openjdk.java.net/browse/JDK-8191739

webrev: http://cr.openjdk.java.net/~ccheung/8191739/webrev.00/

Tested locally on linux-x64.

thanks,
Calvin