RFR: 8303760: Visual Studio should use the primary variant in the IDE [v2]

[Julian Waters]

> Currently support for Visual Studio development always assumes server as the variant to use. More accurately this should instead be set to the primary variant instead

Julian Waters 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 two additional commits since the last revision:

 - Merge branch 'openjdk:master' into patch-6
 - Visual Studio should use the primary variant in the IDE

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Changes:
  - all: https://git.openjdk.org/jdk/pull/12906/files
  - new: https://git.openjdk.org/jdk/pull/12906/files/6ba7854d..a0d7b65d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=12906&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=12906&range=00-01

  Stats: 3507 lines in 138 files changed: 2500 ins; 563 del; 444 mod
  Patch: https://git.openjdk.org/jdk/pull/12906.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12906/head:pull/12906

PR: https://git.openjdk.org/jdk/pull/12906