RFR: 8314932: G1: Fix -Wconversion warnings for simple cases inside g1 folder

Thu Aug 24 09:04:50 UTC 2023

Simple dropping of conversions in miscellaneous places.

(I include all of them in one PR, because I think reviewing them requires local reasoning. There are other more complex conversions in g1 folder, which require their own PRs.)

Test: tier1-5

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Commit messages:
 - g1-conversion-simple

Changes: https://git.openjdk.org/jdk/pull/15413/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15413&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8314932
  Stats: 15 lines in 11 files changed: 1 ins; 0 del; 14 mod
  Patch: https://git.openjdk.org/jdk/pull/15413.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15413/head:pull/15413

PR: https://git.openjdk.org/jdk/pull/15413