* Fix prepending unused TypeScript variables with underscore doesn't rename JSDoc @param.
Fix test for quick fix "Prefix all unused declarations with '_' where possible".
Fixes#33021.
* Replace FindAllReferences.Core.eachSymbolReferenceInFile function call to more ligher call of getJSDocParameterTags when searching for a parameter in jsdoc.
* Remove redundant constant declaration.
* Add test for prefix single unused parameter in jsdoc.