RFR: 8260605: Various java.lang.invoke cleanups [v6]

Wed Mar 17 17:57:08 UTC 2021

> - Remove unused code
> - Inline and simplify the bootstrap method invocation code (remove pointless reboxing checks etc)
> - Apply pattern matching to make some code more readable

Claes Redestad has updated the pull request incrementally with one additional commit since the last revision:

  Mandy review + additional cleanup

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/2300/files
  - new: https://git.openjdk.java.net/jdk/pull/2300/files/b20073e3..62ec7a40

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=2300&range=05
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=2300&range=04-05

  Stats: 56 lines in 2 files changed: 11 ins; 17 del; 28 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2300.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2300/head:pull/2300

PR: https://git.openjdk.java.net/jdk/pull/2300