[9] Review request: 8167155 [PIT] failure and a test bug in MultiResolutionTrayIconTest.java

[Andrey Rusakov]

Hello,

please review the fix

http://cr.openjdk.java.net/~arusakov/8167155/webrev.00

for the issue

https://bugs.openjdk.java.net/browse/JDK-8167155

This fix resolves issue which caused test to pass even if "fail" button was 
clicked and adds jtreg platform filter.