on jdk.internal.vm.ci

[Maurizio Cimadamore]

Hi,
the IntelliJ support for JDK relies on make to give the set of source 
roots used for any given modules. I have noticed that the set of source 
roots associated with 'jdk.internal.vm.ci' is incorrect, as it points to

src/jdk.internal.vm.ci/share/classes

while in reality it should point to a subset of directories contained in 
such a folder (depending on the architecture).

This breaks the IntelliJ project configuration if jdk.internal.vm.ci is 
selected - which is causing issues for some, see [1].

[1] - 
http://mail.openjdk.java.net/pipermail/jdk10-dev/2017-November/000590.html

Maurizio