updated message from 'boolean' error/warning to enum, in case we want more levels later.
updated message from 'boolean' error/warning to enum, in case we want more levels later.

komalsukhani/deb-lombok.ast,rzwitserloot/lombok.ast,komalsukhani/deb-lombok.ast,rzwitserloot/lombok.ast,evant/android-retrolambda-lombok,komalsukhani/deb-lombok.ast,rzwitserloot/lombok.ast,evant/android-retrolambda-lombok,evant/android-retrolambda-lombok