RFR: 8253028: SA core file tests still time out on OSX with "java.io.IOException: App waiting timeout"

[Chris Plummer]

Some SA core file testing requires longer timeouts since core files can on occasion take a very long time to produce on
OSX.

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Commit messages:
 - 8253028: SA core file tests still time out on OSX with "java.io.IOException: App waiting timeout"

Changes: https://git.openjdk.java.net/jdk/pull/192/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=192&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8253028
  Stats: 3 lines in 3 files changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk/pull/192.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/192/head:pull/192

PR: https://git.openjdk.java.net/jdk/pull/192