[8u-dev] Request for approval: 8130426: Test tools/javac/links/LinksTest.java fails on Windows 10(x64)

[Brian Burkhalter]

Please approve this simple improvement to a langtools test.

Issue:	https://bugs.openjdk.java.net/browse/JDK-8130426
Patch:	http://cr.openjdk.java.net/~bpb/8130426/webrev.00/

Summary: Convert the JDK 8u version of this test to use the logic in the JDK 9 version, viz., create the symbolic link up front and pass by default if this operation fails.

Thanks,

Brian