[jdk17u-dev] RFR: 8292903: enhance round_up_power_of_2 assertion output

[Matthias Baesken]

8292903: enhance round_up_power_of_2 assertion output

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Commit messages:
 - Backport 8d3d4397ccbfadab99fe572f0d0a8504d268a0dc

Changes: https://git.openjdk.org/jdk17u-dev/pull/714/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=714&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8292903
  Stats: 3 lines in 1 file changed: 1 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/714.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev pull/714/head:pull/714

PR: https://git.openjdk.org/jdk17u-dev/pull/714