[jdk8u-dev] RFR: 8324185: [8u] Accept Xcode 12+ builds on macOS [v2]

[Sergey Bylokhov]

> I would like to update the build logic for macOS so it will accept the XCode 14 and 15. It could be done in a few ways:
> 
>  - Add XCode 13, 14 and 15 to the list of supported versions, like [this](https://github.com/openjdk/jdk8u-dev/pull/422/commits/d2d157ff4dd04cb108e036282643b21ac132016c)
>  - Accept all XCode 9+ versions, like [this](https://github.com/openjdk/jdk8u-dev/pull/422/commits/d1d5e2d214135084e50bc5aba839afab98cf2de7).
>  - Delete the "fail fast" code path. So if the xcode and command-line tools are there then build it, like [this](https://github.com/openjdk/jdk8u-dev/pull/422/commits/d28f6cdbc2bd6cb6bfefc84837a6c7c76c287572). 
> 
> I think we can safely delete this check, so this PR implements it.

Sergey Bylokhov 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 four additional commits since the last revision:

 - Merge branch 'openjdk:master' into xcode
 - Drop "Fail-fast" code path
 - Accept XCode 9+
 - Add Xcode 13, 14 and 15

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

Changes:
  - all: https://git.openjdk.org/jdk8u-dev/pull/422/files
  - new: https://git.openjdk.org/jdk8u-dev/pull/422/files/d28f6cdb..78f31934

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=422&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=422&range=00-01

  Stats: 3964 lines in 37 files changed: 257 ins; 3597 del; 110 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/422.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev.git pull/422/head:pull/422

PR: https://git.openjdk.org/jdk8u-dev/pull/422