RFR: 8294961: Convert java.base/java.lang.reflect.ProxyGenerator to use the Classfile API to generate proxy classes [v13]

[Adam Sotona]

> java.base java.lang.reflect.ProxyGenerator uses ASM to generate proxy classes and this patch converts it to use Classfile API.
> 
> Please review.
> 
> Thank you,
> Adam

Adam Sotona has updated the pull request incrementally with one additional commit since the last revision:

  cleanup of NAME_CTOR and NAME_CLINIT in ProxyGenerator

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Changes:
  - all: https://git.openjdk.org/jdk/pull/10991/files
  - new: https://git.openjdk.org/jdk/pull/10991/files/36927822..3352329d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10991&range=12
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10991&range=11-12

  Stats: 9 lines in 1 file changed: 0 ins; 2 del; 7 mod
  Patch: https://git.openjdk.org/jdk/pull/10991.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/10991/head:pull/10991

PR: https://git.openjdk.org/jdk/pull/10991