8178017: JDK 9 change to symlink handling causes misleading class.public.should.be.in.file diagnostic
Reviewed-by: jlahoda, cushon

8153229: JavacFiler.checkFileReopening drowns in exceptions after Modular Runtime Images change
Summary: Using Path.equals instead of Files.isSameFile to speed up Filer checks
Reviewed-by: jjg

8149843: StandardJavaFileManager should provide a way to get paths from strings
8150111: Need to change signature of StandardJavaFileManager.setLocationFromPaths
Reviewed-by: vromero, jlahoda

8147801: java.nio.file.ClosedFileSystemException when using Javadoc API's in JDK9
Reviewed-by: jlahoda

8059976: Convert JavacFileManager to use java.nio.file internally
Reviewed-by: jlahoda

8080511: Refresh of jimage support
Reviewed-by: alanb, mchung, psandoz, acorn, lfoltan, ctornqvi
Contributed-by: james.laskey@oracle.com, jean-francois.denise@oracle.com, sundararajan.athijegannathan@oracle.com

8076420: Consolidate javac file handling in javac.file package
Reviewed-by: jlahoda