6850612: Deprecate Class.newInstance since it violates the checked exception language contract
Reviewed-by: lancea, mullan, dfuchs

8151384: Improve String.CASE_INSENSITIVE_ORDER and remove sun.misc.ASCIICaseInsensitiveComparator
Reviewed-by: shade, sherman

8081452: Move sun.nio.cs.AbstractCharsetProvider into jdk.charset/sun.nio.cs.ext
Summary: to AbstractCharsetProvider class from base.java module to jdk.charsets module
Reviewed-by: alanb