8074432: Move jdeps and javap to jdk.jdeps module
Reviewed-by: jjg, alanb, erikj

8076543: Add @modules as needed to the langtools tests
Reviewed-by: jjg, shurailine

8062348: langtools tests should close file manager (group 1)
Reviewed-by: darcy

8030726: tools/javac/NoStringToLower.java fails due to enforcement no use of String.toLowerCase on non-langtools classes
Summary: Fix NoStringToLower test to only enforce ban on String.toLowerCase on langtools classes
Reviewed-by: vromero, jfranck
Contributed-by: paul.govereau@oracle.com

8029800: Flags.java uses String.toLowerCase without specifying Locale
Summary: Introducing StringUtils.toLowerCase/toUpperCase independent on the default locale, converting almost all usages of String.toLowerCase/toUpperCase to use the new methods.
Reviewed-by: jjg, bpatel