JDK 9 RFR Enable doclint reference checking for the java.compiler module

[joe darcy]

Hello,

Please review the small patch below to enable the "reference" category 
of doclint checking (@see and @link tags, etc.) for the java.compiler 
module which hosts the packages javax.lang.model.*, 
javax.annotation.processing, and javax.tools.

Thanks,

-Joe

diff -r 4eb77fb98952 make/CompileJavaModules.gmk
--- a/make/CompileJavaModules.gmk    Fri Feb 10 08:21:20 2017 -0800
+++ b/make/CompileJavaModules.gmk    Mon Feb 13 12:02:21 2017 -0800
@@ -85,7 +85,7 @@

  ################################################################################

-java.compiler_ADD_JAVAC_FLAGS := -Xdoclint:all/protected,-reference 
'-Xdoclint/package:java.*,javax.*'
+java.compiler_ADD_JAVAC_FLAGS := -Xdoclint:all/protected 
'-Xdoclint/package:java.*,javax.*'

  ################################################################################