[jdk11u-dev] RFR: 8249195: Change to Xcode 11.3.1 for building on Macos at Oracle [v2]

[Christoph Langer]

> Backport of JDK-8249195

Christoph Langer 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.

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Changes:
  - all: https://git.openjdk.java.net/jdk11u-dev/pull/558/files
  - new: https://git.openjdk.java.net/jdk11u-dev/pull/558/files/d1ac1b83..d1ac1b83

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=558&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=558&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/558.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/558/head:pull/558

PR: https://git.openjdk.java.net/jdk11u-dev/pull/558