Merge stable

[dkorpel]

This might unblock dlang/phobos#8663

[dlang-bot]

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Bugzilla references

Auto-close	Bugzilla	Severity	Description
✓	20520	regression	Runtime segfault when taking typeid of a class instanciated within an enum
✓	23614	blocker	ImportC: __int128 not supported
✓	23618	blocker	Right Shift equals expressions on unsigned shorts should be unsigned right shift

⚠️⚠️⚠️ Warnings ⚠️⚠️⚠️

• Regression or critical bug fixes should always target the stable branch. Learn more about rebasing to stable or the D release process.

To target stable perform these two steps:

1. Rebase your branch to upstream/stable:

git rebase --onto upstream/stable upstream/master

2. Change the base branch of your PR to stable

Testing this PR locally

If you don't have a local development environment setup, you can use Digger to test this PR:

dub run digger -- build "master + dmd#14815"

[deavmi]

Is this in a recent D release?

[deavmi]

Is this in a recent D release?

Asking because of the _int128 support...