<i18n dev> RFR: 8365186: Reduce size of j.t.f.DateTimePrintContext::adjust

[Shaojin Wen]

By adding the JVM startup parameters `-XX:+UnlockDiagnosticVMOptions -XX:+PrintInlining` and analyzing the printed log information, and found that the code size of the j.t.f.DateTimePrintContext::adjust method is 382, which is greater than 325, causing inlining failure.


@ 7   java.time.format.DateTimePrintContext::adjust (382 bytes)   failed to inline: hot method too big


By splitting the code into `common/uncommon`, and moving the uncommon code into adjust0, the adjust method is kept small and can be inlined by the C2 optimizer.

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Commit messages:
 - from @jodastephen
 - from @jodastephen
 - Separate exception handling into two separate methods to make codeSize < 325

Changes: https://git.openjdk.org/jdk/pull/26633/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=26633&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8365186
  Stats: 22 lines in 1 file changed: 21 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/26633.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26633/head:pull/26633

PR: https://git.openjdk.org/jdk/pull/26633