[svelte-parse] Boolean attribute doesn't get end position

[halfnelson]

<div test></div>

gives

          "type": "svelteProperty",
          "name": "test",
          "value": [],
          "modifiers": [],
          "shorthand": "boolean",
          "position": {
            "start": {
              "line": 1,
              "column": 6,
              "offset": 5
            },
            "end": {}
          }

expected end to have position information

[halfnelson]

I also get the same behaviour for directives without an =

<input type="checkbox" bind:group />

gives no end position (it says shorthand="none", but not sure what it should say here)

[pngwn]

I think this should say shorthand='expression' as it is shorthand for bind:group={group}, iirc.

[pngwn]

Not actually convinced about the shorthand thing. Will revisit.