References to QasmStd Items don't Support GoTo Def

[ScottCarda-MS]

Describe the bug

When trying to use the language server's go-to-definition feature of references to QasmStd items, an error occurs.

To Reproduce

import QasmStd.Convert.BoolAsBigInt;
operation Main() : Unit {
    BoolAsBigInt(true);
}

The try to use go-to-definition on BoolAsBigInt. It will try to open a readonly view of Convert.qs, as it would with any library item, but the view displays a generic "unexpected error" message.

Expected behavior

The go-to-definition feature should ideally open a readonly view of the definition of the QasmStd item, or at least use the more graceful "no definition found" error message the user would normally get when trying to go-to-def on invalid items.

Screenshots