[Harmony Wiki] Update of "Jitrino OPT/unguard" by Mikhail Fursov

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The following page has been changed by Mikhail Fursov:
http://wiki.apache.org/harmony/Jitrino_OPT/unguard

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- If after devirtualization the call was not inlined due to some resons there is no sense to keep it devirtualized.
- The pass performes this transformation if needed.
+ ''' 'unguard' ''' - removes HIR regions with devirtualized but not inlined methods.
+ [[BR]][[BR]]
+ If a call instruction was devirtualized but not inlined there is no sense to keep it in devirtualized form.
+ [[BR]]
+ The pass removes the guard and devirtualized branch as well.