Inlay hint padding not rendered on the right side

[NoahELE]

Does this issue occur when all extensions are disabled?: No

• VS Code Version: 1.75.0
• OS Version: win 11

Steps to Reproduce:

1. rust-analyzer inlay hints' padding look weird.

{
  "editor.inlayHints.enabled": "on",
  "editor.inlayHints.padding": true,
}

The inlay type hint for String has no round padding on right side, while the i32 type hint looks normal.

[NoahELE]

I think it might have something to do with String type hint being ctrl-clickable. The non-clickable types like i32 is fine. Also, for other languages that does not support ctrl-click on inlay hints, the rendering is also fine.

[jrieken]

I can reproduce, but only with Rust Analyzer. This issue is that it returns a label part that's empty. When rending we add the padding/border to that element but because its empty, it never gets rendered