RFR: 8272167: AbsPathsInImage.java should skip *.dSYM directories

[Sergey Bylokhov]

This fix changes the AbsPathsInImage test to skip *.dSYM directories.

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Commit messages:
 - Update AbsPathsInImage.java

Changes: https://git.openjdk.java.net/jdk/pull/5885/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5885&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8272167
  Stats: 11 lines in 1 file changed: 9 ins; 1 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5885.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5885/head:pull/5885

PR: https://git.openjdk.java.net/jdk/pull/5885