RFR: 8247536: Support for pre-generated java.lang.invoke classes in CDS static archive [v7]

[Yumin Qi]

> This patch is reorganized after 8252725, which is separated from this patch to refactor jlink glugin code. The previous
> webrev with hg can be found at: http://cr.openjdk.java.net/~minqi/2020/8247536/webrev-05. With 8252725 integrated, the
> regeneration of holder classes is simply to call the new added GenerateJLIClassesHelper.cdsGenerateHolderClasses
> function.  Tests: tier1-4

Yumin Qi has updated the pull request incrementally with one additional commit since the last revision:

  Remove trailing word of line which is not used in holder class regeneration. There is a trailing LF (Line Feed) so trim
  white spaces from both front and end of the line or it will fail method type validation.

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/193/files
  - new: https://git.openjdk.java.net/jdk/pull/193/files/9ab52116..9b0f523b

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=193&range=06
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=193&range=05-06

  Stats: 22 lines in 2 files changed: 10 ins; 0 del; 12 mod
  Patch: https://git.openjdk.java.net/jdk/pull/193.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/193/head:pull/193

PR: https://git.openjdk.java.net/jdk/pull/193