8211821: PrintStringTableStatistics crashes JVM
Summary: During JVM exit, print the Symbol and String tables before current thread gets deleted.
Reviewed-by: iklam, dholmes
/build/
/dist/
/.idea/
nbproject/private/
/webrev
/.src-rev
/.jib/
.DS_Store
.metadata/
.recommenders/
test/nashorn/script/external
test/nashorn/lib
NashornProfile.txt
**/JTreport/**
**/JTwork/**