'*' is not searching for whole word when '$' is removed from word separators
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Description
Describe the bug
I'm developing in PHP so I have removed '$' from the word separators. When I perform a * search on a PHP variable that starts with a * it doesn't do a whole word search. It does a partial word match search.
To Reproduce
1.Remove $ from "editor.wordSeparators".
2. Then add a word $foo and $foobar to a file.
3. Perform a * search on $foo
Expected behavior
When performing a * search of $foo it should not find a match in $foobar.
Screenshots

Environment (please complete the following information):
- Extension (VsCodeVim) version: v1.24.3
- VSCode version: 1.74.2
- OS: Windows 11 Pro
Additional context
Add any other context about the problem here.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the issue by removing '$' from VS Code's editor.wordSeparators, adding $foo and $foobar, and searching for $foo with *. Trace the search handling for word boundaries; done means the search matches $foo but not the longer $foobar variable.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- typescript
- Domain
- tooling
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100