Merge "Prevent kotlinc from reading /tmp/build.txt" am: c4ad11ec am:...

Merge "Prevent kotlinc from reading /tmp/build.txt" am: c4ad11ec am: ee5858c4 am: 4b85795a am: 2edfe874

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2030984

Change-Id: I94202436b8ec9c600addc4f6a6b7214618b5b11c