Yi Cheng 5da2210d7f Performance improvements for cli json report and minor refactoring (#724) ... Major change: * Identified hotspot in `JsonElem.hashCode` because it hashes children recursively. Hence simplified hashing scheme, reducing CPU time on `JsonReport.apply()` from 64.7 sec to 2.5 sec Other minor changes: * Make `JsonRequirement` use immutable classes * Simplify `JsonRequirement` composition		2018-01-01 11:55:43 -08:00
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src	Performance improvements for cli json report and minor refactoring (#724)	2018-01-01 11:55:43 -08:00