RFR: 8365264: Rename ResourceHashtable to HashTable [v4]

[Johan Sjölen]

> Hi,
> 
> This PR renames `ResourceHashtable` to `HashTable`. The "resource" part of the name isn't true anymore, it does many types of allocations. The RHT should be HT to signify that it's the default choice of hashtable in Hotspot.
> 
> I didn't change any copyright years for this change.
> 
> Thanks

Johan Sjölen has updated the pull request incrementally with one additional commit since the last revision:

  Found the instructions for how to run the script in the error log

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Changes:
  - all: https://git.openjdk.org/jdk/pull/26729/files
  - new: https://git.openjdk.org/jdk/pull/26729/files/4e143035..5c58e011

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=26729&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=26729&range=02-03

  Stats: 20 lines in 7 files changed: 10 ins; 10 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/26729.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26729/head:pull/26729

PR: https://git.openjdk.org/jdk/pull/26729