RFR(XXS) : 8204517 : [Graal] org.graalvm.compiler.debug.test.VersionsTest fails with InvalidPathException on windows

[Igor Ignatyev]

http://cr.openjdk.java.net/~iignatyev//8204517/webrev.00/index.html
> 7 lines changed: 2 ins; 1 del; 4 mod; 

Hi all,

could you please review this tiny fix for graal unit test? the patch has been approved and upstreamed to graal.

webrev: http://cr.openjdk.java.net/~iignatyev//8204517/webrev.00/index.html
JBS: https://bugs.openjdk.java.net/browse/JDK-8204517
testing: affected test on windows and other platforms

Thanks,
-- Igor