Merge "Add Singleton class to collect and validate test spec metadata." into...

Merge "Add Singleton class to collect and validate test spec metadata." into main am: 29766f4d am: 84e1d2a4

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2824671



Change-Id: I876350b32872894d1b4ce0acebbc6bac5c9fd399
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>