hg: panama/dev: 8211925: Remove jdk.internal.clang from list of upgradeable modules

[maurizio.cimadamore at oracle.com]

Changeset: 3fc8bbd10061
Author:    mcimadamore
Date:      2018-10-09 13:53 +0100
URL:       http://hg.openjdk.java.net/panama/dev/rev/3fc8bbd10061

8211925: Remove jdk.internal.clang from list of upgradeable modules
Reviewed-by: sundar

! make/common/Modules.gmk
! test/jdk/com/sun/tools/jextract/jclang-ffi/TestJextractFFI.java