TrkToolInterfaces: Mark ITrackSlimmingTool::slim as not thread-safe.

Mark ITrackSlimmingTool::slim() as not thread-safe, to match the interface. (Pending checker changes flag this with a warning.)

This merge request affects 1 package:

• Tracking/TrkTools/TrkToolInterfaces

Adding @amorley as watcher

added Tracking master review-pending-level-1 labels

CI Result SUCCESS (hash fb0ed10c)

	Athena	AthSimulation
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 10565]

added review-approved label and removed review-pending-level-1 label

merged

mentioned in commit f58954c3

added sweep:ignore label