RFR: 8292375: Convert ProtectionDomainCacheTable to ResourceHashtable [v4]

[Coleen Phillimore]

> Please review this simple conversion for the ProtectionDomainCacheTable from Old Hashtable to ResourceHashtable.  There are specific tests for this table in test/hotspot/jtreg/runtime/Dictionary and serviceability/dcmd/vm/DictionaryStatsTest.java.
> Also tested with tier1-7.

Coleen Phillimore has updated the pull request incrementally with one additional commit since the last revision:

  David's comments

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Changes:
  - all: https://git.openjdk.org/jdk/pull/10043/files
  - new: https://git.openjdk.org/jdk/pull/10043/files/842b30ab..ac67b187

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10043&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10043&range=02-03

  Stats: 9 lines in 1 file changed: 3 ins; 5 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/10043.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10043/head:pull/10043

PR: https://git.openjdk.org/jdk/pull/10043