<i18n dev> RFR: 8315444: Convert test/jdk/tools to Classfile API [v2]

[Qing Xiao]

> /test/jdk/tools/lib/tests/JImageValidator.java, tests in /test/jdk/tools/jlink and /test/jdk/tools/jimage use on com.sun.tools.classfile and should be converted to Classfile API.

Qing Xiao has updated the pull request incrementally with one additional commit since the last revision:

  migrate test/jdk/java/time/nontestng/java/time/chrono/HijrahConfigTest.java use Classfile API

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Changes:
  - all: https://git.openjdk.org/jdk/pull/15529/files
  - new: https://git.openjdk.org/jdk/pull/15529/files/c658c8f1..48b6401c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=15529&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=15529&range=00-01

  Stats: 6 lines in 1 file changed: 5 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/15529.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15529/head:pull/15529

PR: https://git.openjdk.org/jdk/pull/15529