WIP: Add workaround for tsan short lived fiber support.

Tsan does not cope well with rapidely destroyed/created fibers. As it is currently too much effort to fully investigate the tsan issue we work around it by caching the shourt lived fibers based on their stack base address. This allows us to use thread sanitizer for now.
4 jobs from coninuation in 39 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #3526
build_cmake

00:23

 
  Test
failed #3527
run_tests

00:16

 
  Sanitizer
skipped #3529
run_address_sanitizer
skipped #3528
run_thread_sanitizer
 
Test run_tests
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