RFR: 8343218: Disable allocating interface and abstract classes in non-class metaspace [v2]

[Coleen Phillimore]

> Change the code to allocate all Klasses to class-metaspace until c2 dependencies are understood and fixed, and more urgent need arises when compressing klass pointers to smaller numbers of bits.
> Tested with tier1-4.

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

  Update src/hotspot/share/oops/instanceKlass.cpp
  
  Co-authored-by: David Holmes <62092539+dholmes-ora at users.noreply.github.com>

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Changes:
  - all: https://git.openjdk.org/jdk/pull/21769/files
  - new: https://git.openjdk.org/jdk/pull/21769/files/a30081ad..b9df0326

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=21769&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=21769&range=00-01

  Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/21769.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21769/head:pull/21769

PR: https://git.openjdk.org/jdk/pull/21769