RFR: 8294961: java.base java.lang.reflect.ProxyGenerator uses ASM to generate proxy classes [v2]

[Adam Sotona]

> java.base java.lang.reflect.ProxyGenerator uses ASM to generate proxy classes and this patch converts it to use Classfile API.
> 
> This pull request suppose to chain on the 8294982: Implementation of Classfile API https://github.com/openjdk/jdk/pull/10982
> 
> Please review.
> 
> Thank you,
> Adam

Adam Sotona has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains four additional commits since the last revision:

 - j.l.r.ProxyGenerator fix - Classfile API moved under jdk.internal.classfile package
 - Merge branch 'JDK-8294982' into JDK-8294961
 - Merge branch 'JDK-8294982' into JDK-8294961
 - 8294961: java.base java.lang.reflect.ProxyGenerator uses ASM to generate proxy classes

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/10991/files
  - new: https://git.openjdk.org/jdk/pull/10991/files/faf84e41..c242a4a2

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10991&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10991&range=00-01

  Stats: 308313 lines in 5554 files changed: 150280 ins; 116292 del; 41741 mod
  Patch: https://git.openjdk.org/jdk/pull/10991.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10991/head:pull/10991

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