[jdk8u-dev] RFR: 8226236: win32: gc/metaspace/TestCapacityUntilGCWrapAround.java fails

[zzambers]

Following tests from hotspot/tier1 currently fails on Windows x86:
`gc/metaspace/TestCapacityUntilGCWrapAround.java` 

This backport fixes that failure.

Backport is not clear as there was some renaming done in `metaspace.cpp` file. However apart from some renames (e.g. `align_size_down` -> `align_down`, `capacity_until_GC` -> `old_capacity_until_GC`) and location of the file surrounding method looks practically the same (See original change [1]). 

Tested on branch with hotspot/tier1 testing enabled for x86 OSes [2]. Fixed that one test, caused no regressions (Compare [3][4]).

[1] https://github.com/openjdk/jdk/commit/038f58d4
[2] https://github.com/zzambers/jdk8u-dev/commits/metaspace-fix-test
[3] https://github.com/zzambers/jdk8u-dev/actions/runs/3438556844/jobs/5735312562
[4] https://github.com/zzambers/jdk8u-dev/actions/runs/3471835524/jobs/5803573225

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Commit messages:
 - Backport 038f58d4f0782f885547d2b052a47fdf2229cfe3

Changes: https://git.openjdk.org/jdk8u-dev/pull/192/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=192&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8226236
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/192.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev pull/192/head:pull/192

PR: https://git.openjdk.org/jdk8u-dev/pull/192