Add ttas_spinlock.

4 jobs from master in 3 minutes 29 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #2872
build_cmake

00:40

 
  Test
passed #2873
run_tests

00:39

 
  Sanitizer
passed #2875
run_address_sanitizer

01:15

passed #2874
run_thread_sanitizer

00:54