[lworld] RFR: 8271229: [lworld] Test serviceability/sa/ClhsdbDumpclass.java fails with unexpected end of file

[Frederic Parain]

Please review those changes fixing the HotSpot agent to correctly dump classes even in presence of injected interfaces.
Fix failures of serviceability/sa/ClhsdbDumpclass.java on all platforms (tested with Mach5, tiers 1 to 3).

Thank you,

Fred

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Commit messages:
 - Fix injected interfaces in class writer

Changes: https://git.openjdk.java.net/valhalla/pull/498/files
 Webrev: https://webrevs.openjdk.java.net/?repo=valhalla&pr=498&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8271229
  Stats: 20 lines in 3 files changed: 18 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/498.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/498/head:pull/498

PR: https://git.openjdk.java.net/valhalla/pull/498