d5e591b3dc
Previously we often passed an empty `FunctionRef` to the generic `search_gather` function. The plan is to refactor `search_gather` to return an `IndexMask` along with storing leaf nodes in a separate array. Splitting access to all leaf nodes to a separate function simplifies this process and makes code more expressive too. Part of #118145. Pull Request: https://projects.blender.org/blender/blender/pulls/126667