6900037: javac should warn if earlier -source is used and bootclasspath not setReviewed-by: darcy
6970016: Clean up ARM/try-with-resources implementationSummary: changed Xlint option name from -Xlint:arm to -Xlint:tryReviewed-by: jjg
6968063: provide examples of code that generate diagnosticsReviewed-by: mcimadamore