8208184: IllegalArgumentException while invoking code completion on netbeans IDE Summary: Set Log.useSource and fix the issue in Modules.java when broken module is encountered Reviewed-by: jjg Contributed-by: srinivas.dama@oracle.com, jan.lahoda@oracle.com

/build/
/dist/
/.idea/
nbproject/private/
/webrev
/.src-rev
/.jib/
.DS_Store
.metadata/
.recommenders/
test/nashorn/script/external
test/nashorn/lib
NashornProfile.txt
**/JTreport/**
**/JTwork/**