Translator: Fix a bug with struct-with-sampler rewrite Bug: chromium:388884060 Change-Id: I8843e0ab9698224020628bedc7a528865d91d2bf Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6354207 Commit-Queue: Geoff Lang <geofflang@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Auto-Submit: Shahbaz Youssefi <syoussefi@chromium.org>