8157953: JShell tests: reenable ToolBasicTest 8080883: JShell tool: tool does not report errors if -startup and -nostartup flags are specified Reviewed-by: vromero

^build/
^dist/
^.idea/
nbproject/private/
^webrev
^.hgtip
^.bridge2
^.jib/
.DS_Store
.metadata/
.recommenders/