DONT_DEBUG_KEY

A heritable atom (has HERITABLE_KEY ->trueObject as a property) which, when present in as A_Fiber's heritableFiberGlobals, indicates that the fiber should not be subject to debugging. This is a way to mark fibers launched by the debugger itself, or forked by such a fiber, say for stringification.

Note that fibers aren't currently (2022.05.02) serializable, and if they were, we still wouldn't want to serialize one launched from a debugger, so this atom itself doesn't need to be serializable.