Merge changes from topic \'rr_barrier\' am: e835f3a2
am: 5cf09ba6
* commit '5cf09ba6':
Store precice set of which constructors require barriers
Revert "Revert "Check if we require barrier if we did not resolve classes""
Revert "Revert "Change RequiresConstructorBarrier default to yes""
Change-Id: I0eac446a8b1b712fb3678d87d1be4b07aba7fffe