[jdk8u-dev] RFR: 8244966: Add .vscode to .hgignore and .gitignore

[SendaoYan]

On Tue, 30 Jul 2024 15:11:18 GMT, SendaoYan <syan at openjdk.org> wrote:

> Hi all,
> 
> This pull request contains a backport of commit [95c0b97b](https://github.com/openjdk/jdk11u-dev/commit/95c0b97bc2bfcb686dfabc6d74424772f0f866a1) from the [openjdk/jdk11u-dev](https://git.openjdk.org/jdk11u-dev) repository.
> 
> The commit being backported was authored by SendaoYan on 30 Jul 2024 and was reviewed by Paul Hohensee.
> 
> Trivial fix but useful, no risk.
> 
> Thanks!

The GHA report several failures, all the failures are unreleated to this PR.

1. windows x86 build [fails](https://github.com/openjdk-bots/jdk8u-dev/actions/runs/10164981708/job/28111895084) `_isnan referenced in function _checkOverflow` which has been recorded and fixed by [JDK-8337312](https://bugs.openjdk.org/browse/JDK-8337312)
2. macosx-64 jdk/tier1 report `com/sun/jdi` tests [fails](https://github.com/openjdk-bots/jdk8u-dev/actions/runs/10164981708/job/28112859874), `transport error 202: gethostbyname: unknown host` seems to be GHA environmental issue.
3. macos-x64 hotpsot/tier1 report `OpaqueAccesses.java` fails, which has been recorded by [JDK-8337185](https://bugs.openjdk.org/browse/JDK-8337185)
4. macos-x64 hotpsot/tier1 report `FieldMonitor.java` fails, same to 2
5. All the fails are CA test fails, which fixing by https://github.com/openjdk/jdk8u-dev/pull/526

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PR Comment: https://git.openjdk.org/jdk8u-dev/pull/556#issuecomment-2314143038