Simplify method id handling when recording method trace events am: 7ab239950b am: e91351d170 am: daee59901b

Original change: https://android-review.googlesource.com/c/platform/art/+/2411665

Change-Id: Ic3e20aa542dd42cf6f3ee7142ca1d0b25ccd5397
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>