[jdk11u-dev] RFR: 8260282: Add option to compress heap dumps created by -XX:+HeapDumpOnOutOfMemoryError

[Ralf Schmelter]

Add option to compress heap dumps created by -XX:+HeapDumpOnOutOfMemoryError

The change itself had to be slightly modified, since VM arguments are declared slightly different in JDK11 (the MANAGABLE flag is not supported). Otherwise no adjustments were needed.

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Commit messages:
 - Backport d2b0ea1d01a0628065115a0f163ff763ad70296e

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/640/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=640&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8260282
  Stats: 92 lines in 3 files changed: 89 ins; 0 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/640.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/640/head:pull/640

PR: https://git.openjdk.java.net/jdk11u-dev/pull/640