tree 3b1054ca87a565ce0dd6f8eedf42b9ea1a7f287b
parent b14e14151964df77548e37de84300b433592013e
author Ivan Lozano <ivanlozano@google.com> 1596648512 -0400
committer Ivan Lozano <ivanlozano@google.com> 1596648694 -0400

Make source_stem required for Rust SourceProviders

This removes ambiguity for developers with the 'stem' property.

Bug: 159064919
Test: New Soong test; error is produced if this property is undefined.
Change-Id: I790fbcfa6cd7dbf6df63b5cf5c22983426ec072e