Merge "Remove recursive rule variable reference" into main am: 3abcf1d80a am: ac540e60f9

Original change: https://android-review.googlesource.com/c/platform/external/llvm/+/2901828

Change-Id: I700516f5b91082887662d1930407f0a95d92c8e7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>