[SE] Make Stream movable

Summary:
The example code makes it clear that this is a much better design
decision.

Reviewers: jlebar

Subscribers: jprice, parallel_libs-commits

Differential Revision: https://reviews.llvm.org/D24142

llvm-svn: 280397
GitOrigin-RevId: e9a12f117563440ae6a4345d3d23fde96c5260e1
5 files changed
tree: 71b222dac8b889cbc98743d5b87910398c6c0d0d
  1. .arcconfig
  2. .clang-format
  3. README.rst
  4. streamexecutor/