kinds

A set of distinct strings that categorize the thread flow location. Well-known kinds include 'acquire', 'release', 'enter', 'exit', 'call', 'return', 'branch', 'implicit', 'false', 'true', 'caution', 'danger', 'unknown', 'unreachable', 'taint', 'function', 'handler', 'lock', 'memory', 'resource', 'scope' and 'value'.