[jdk11u-dev] RFR: 8249195: Change to Xcode 11.3.1 for building on Macos at Oracle [v3]

[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 pull request now contains one commit:

  Backport 097720cce5bc44555507fdb031c6f78134c0cfbf

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Changes: https://git.openjdk.java.net/jdk11u-dev/pull/558/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=558&range=02
  Stats: 41 lines in 2 files changed: 2 ins; 5 del; 34 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