RFR: 8350607: Consolidate MethodHandles::zero into MethodHandles::constant [v2]

[Chen Liang]

> LF editor spins classes, this avoids the spinning overhead and should speed up non-capturing lambdas too.
> 
> There may need to be additional intrinsic work for MH combinator lf bytecode generation.

Chen Liang has updated the pull request incrementally with one additional commit since the last revision:

  We no longer load DelegateMH as we no longer rebind

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Changes:
  - all: https://git.openjdk.org/jdk/pull/23706/files
  - new: https://git.openjdk.org/jdk/pull/23706/files/6f5c8873..beee1ad6

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=23706&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=23706&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 1 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/23706.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23706/head:pull/23706

PR: https://git.openjdk.org/jdk/pull/23706