[jdk21u-dev] RFR: 8327261: Parsing test for Double/Float succeeds w/o testing all bad cases

[Goetz Lindenmaier]

I backport this for parity with 21.0.4-oracle.

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Commit messages:
 - Backport 9f7094079b6eb6b60b345955dba358a2d5c90931

Changes: https://git.openjdk.org/jdk21u-dev/pull/391/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=391&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8327261
  Stats: 24 lines in 2 files changed: 0 ins; 6 del; 18 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/391.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/391/head:pull/391

PR: https://git.openjdk.org/jdk21u-dev/pull/391