RFR: 8371418: Methods in AdapterHandlerLibrary use HashtableBase iterate method incorrectly

[Ashutosh Mehra]

The closure passed to `HashTable::iterate` in `AdapterHandlerLibrary::contains` and `AdapterHandlerLibrary::print_handler_on` is returning incorrect value. If the search is successful, it should return false to terminate the iteration, but it is returning true. This patch fixes the return value of these closures.
In addition, it also updates `CompactHashTable::iterate` to be the same as `HashTAble::iterate` by using return value of the closure to determine if the iteration should continue or abort.
It also adds `CompactHashTable::iterate_all` to iterate all the values unconditionally. Users of `CompactHashTable::iterate` are updated to use `CompactHashTable::iterate_all`.

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Commit messages:
 - 8371418: Methods in AdapterHandlerLibrary use HashtableBase iterate method incorrectly

Changes: https://git.openjdk.org/jdk/pull/28197/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28197&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8371418
  Stats: 72 lines in 7 files changed: 35 ins; 10 del; 27 mod
  Patch: https://git.openjdk.org/jdk/pull/28197.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28197/head:pull/28197

PR: https://git.openjdk.org/jdk/pull/28197