Summary: Pull Request resolved: https://github.com/facebook/yoga/pull/1672 This reworks `gentest-validate`, to be more resilient to changes like D58307002, which cause [validation failures](https://github.com/facebook/yoga/actions/runs/9653979292/job/26627690870) on the intrinsic sizing testing change, which currently causes failure due to the file traversal code not handling the presence of directories. Differential Revision: D58987293