Partial name should be available in options

Why is the partial name not made available inside options passed to a helper? This would be useful to know, and shouldn't be difficult to add.

No file or test is named in the issue. Start by locating where partials create the options passed to helpers, then find the existing tests covering partial and helper behavior; done means the partial name is available in those options and the behavior is covered by a regression test.

Written by the indexing model from the issue text.