hg: openjfx/jfx-dev/rt: 8221993: Create test to validate package declarations in source files

[kevin.rushforth at oracle.com]

Changeset: 32fa6bb5922a
Author:    kcr
Date:      2019-04-08 08:05 -0700
URL:       http://hg.openjdk.java.net/openjfx/jfx-dev/rt/rev/32fa6bb5922a

8221993: Create test to validate package declarations in source files
Reviewed-by: arajkumar

! build.gradle