Include lib/asciidoctor/java in the Eclipse classpath

Having these in the classpath permits the sources to be modified
in Eclipse just like any other Java source file.

Change-Id: I6256f5db793dd056a61e934720cb40056d50cfd0

lib/asciidoctor/BUCK

@@ -16,6 +16,7 @@ java_library(
     '//lib:args4j',
     '//lib:guava',
   ],
+  visibility = ['//tools/eclipse:classpath'],
 )
 
 java_binary(
@@ -35,6 +36,7 @@ java_library(
     '//lib/lucene:analyzers-common',
     '//lib/lucene:core',
   ],
+  visibility = ['//tools/eclipse:classpath'],
 )
 
 maven_jar(

tools/eclipse/BUCK

@@ -10,6 +10,8 @@ java_library(
     '//gerrit-httpd:httpd_tests',
     '//gerrit-main:main_lib',
     '//gerrit-server:server__compile',
+    '//lib/asciidoctor:asciidoc_lib',
+    '//lib/asciidoctor:doc_indexer_lib',
     '//lib/prolog:compiler_lib',
   ] + scan_plugins(),
 )