RFR: 8265129: Add intrinsic support for JVM.getClassId [v12]

[Denghui Dong]

> 8265129: Add intrinsic support for JVM.getClassId

Denghui Dong 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 16 additional commits since the last revision:

 - Merge remote-tracking branch 'github/master' into get_class_id
 - update
 - update
 - update copyright
 - fix test
 - update
 - fix crash problem
 - remove c1 part
 - swap the positions of two operands in cmp operation since the det register will be modified in 32 bit
 - use new_pointer_register
 - ... and 6 more: https://git.openjdk.java.net/jdk/compare/7ac79344...82a07681

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/3470/files
  - new: https://git.openjdk.java.net/jdk/pull/3470/files/f99186b9..82a07681

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=3470&range=11
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=3470&range=10-11

  Stats: 636890 lines in 7523 files changed: 82336 ins; 532965 del; 21589 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3470.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3470/head:pull/3470

PR: https://git.openjdk.java.net/jdk/pull/3470