RFR: 8367278: Test compiler/startup/StartupOutput.java timed out after completion on Windows [v2]

[Damon Fenacci]

> ## Problem
> After [JDK-8260555](https://bugs.openjdk.org/browse/JDK-8260555) changed the default TIMEOUT_FACTOR from 4 to 1, the test compiler/startup/StartupOutput.java can occasionally slightly exceed the 2-minute timeout on Windows.
> 
> ## Change
> Rather than increasing the timeout, this change reduces the number of VM runs with randomly generated near-minimum code cache sizes from 200 to 50. This should still provide sufficient coverage while keeping execution well within the timeout.
> 
> ## Testing:
> Tiers 1-3+

Damon Fenacci has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:

 - Merge branch 'master' into JDK-8367278
 - JDK-8367278: reduce loop to 50 cycles
 - JDK-8367278: Test compiler/startup/StartupOutput.java timed out after completion on Windows

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/27254/files
  - new: https://git.openjdk.org/jdk/pull/27254/files/1b4149c8..8643e5fd

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=27254&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=27254&range=00-01

  Stats: 38573 lines in 1133 files changed: 19462 ins; 10155 del; 8956 mod
  Patch: https://git.openjdk.org/jdk/pull/27254.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27254/head:pull/27254

PR: https://git.openjdk.org/jdk/pull/27254