8189749: Devise strategy for making source level checks more uniform Summary: Create a 'feature' enum which is responsible for handling source version checks and related diagnostic generation Reviewed-by: jjg, jlahoda

- compiler.warn.source.no.bootclasspath: 7
T6278587Neg.java:18:10: compiler.err.prob.found.req: (compiler.misc.inferred.do.not.conform.to.lower.bounds: T, T6278587Neg.C)
1 error
1 warning