RFR: 8332697: ubsan: shenandoahSimpleBitMap.inline.hpp:68:23: runtime error: signed integer overflow: -9223372036854775808 - 1 cannot be represented in type 'long int' [v2]

[William Kemper]

> Use an unsigned version of `right_n_bits`.

William Kemper has updated the pull request incrementally with one additional commit since the last revision:

  Use template to match type of subtrahend and minuend

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/21236/files
  - new: https://git.openjdk.org/jdk/pull/21236/files/4e33d52f..a3fb5858

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=21236&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=21236&range=00-01

  Stats: 29 lines in 3 files changed: 4 ins; 3 del; 22 mod
  Patch: https://git.openjdk.org/jdk/pull/21236.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21236/head:pull/21236

PR: https://git.openjdk.org/jdk/pull/21236