Expose editor.suggestSelection to extension for customization

[shengyfu]

Currently VSCode doesn't expose editor.suggestSelection to extension for customization. This limits specific code extensions' ability to customize the default selection in the completion item list. If an extension needs to rank the completion list (for instance based on a ML model) the extension wants to set the default selection to point to the top ranked item, unless the user wants to override the behavior.

[MikhailArkhipov]

How's about first, lastUsed and dynamic options. In the latter case the selection is specified by the extension. It may not necessarily be the first item.

[jrieken]

/duplicate of #35551

[vscodebot]

Thanks for creating this issue! We figured it's covering the same as another one we already have. Thus, we closed this one as a duplicate. You can search for existing issues here. See also our issue reporting guidelines.

Happy Coding!