fix: Crash for completions after JSDoc * on line following string-named property signature

[jgsheppa]

This is a fix for https://github.com/microsoft/typescript-go/issues/2290.

It would seem that type elements can also be included in JSDoc comments, so a check was added in addition to ast.ISJSDocKind to allow for property signatures among other type elements.

Note: This is my first contribution to the TypeScript compiler, so if I'm totally off the mark, feel free to be blunt about it.

[jgsheppa]

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