This is for integration with BES for bazel test metrics.
Bug: 287102416
Test: b build libcore:all --invocation_id=`uuidgen`
Test: build/bazel/scripts/analyze_build (to verify it's set)
Change-Id: I541b2d65bfa85718fc916582e0540384ae3810d9
This is to marshal Bazel metrics for the sake of uploading to the
Android metrics pipeline.
Test: m nothing
Test: run the regen script
Change-Id: Ia4eca879cff07425c389e30a385418f9865159d6