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

[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

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Commit messages:
 - 8247536: Support for pre-generated java.lang.invoke classes in CDS static archive
 - Merge remote-tracking branch 'upstream/master' into jdk-8247536
 - Merge remote-tracking branch 'upstream/master' into jdk-8247536
 - Merge remote-tracking branch 'origin/jdk-8252689'
 - 8252689: Classes are loaded from jrt:/java.base even when CDS is used
 - 8252689: Classes are loaded from jrt:/java.base even when CDS is used
 - 8252689: Classes are loaded from jrt:/java.base even when CDS is used

Changes: https://git.openjdk.java.net/jdk/pull/193/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=193&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8247536
  Stats: 368 lines in 18 files changed: 344 ins; 13 del; 11 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