hg: jigsaw/jake/langtools: When enabling jdk.* modules, only enable such that have unqualified exports.

[jan.lahoda at oracle.com]

Changeset: 51ae411baf31
Author:    jlahoda
Date:      2016-04-19 09:47 +0200
URL:       http://hg.openjdk.java.net/jigsaw/jake/langtools/rev/51ae411baf31

When enabling jdk.* modules, only enable such that have unqualified exports.

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Modules.java
! test/tools/javac/modules/AddLimitMods.java