RFR: 8369809: G1: Merge G1CollectedHeap::do_collection_pause_at_safepoint[_helper] [v2]

[Thomas Schatzl]

> Hi all,
> 
>   please review this trivial fix to merge `G1CollectedHeap::do_collection_pause_helper` with `do_collection_pause`. The helper method is only called there in this single place and does not add anything but two asserts.
> 
> Testing: gha, local compilation
> 
> Thanks,
>   Thomas

Thomas Schatzl has updated the pull request incrementally with one additional commit since the last revision:

  Update src/hotspot/share/gc/g1/g1CollectedHeap.cpp
  
  * ayang review

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/27790/files
  - new: https://git.openjdk.org/jdk/pull/27790/files/65172ae5..85739069

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=27790&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=27790&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/27790.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27790/head:pull/27790

PR: https://git.openjdk.org/jdk/pull/27790