hg: jdk/jdk11: 8207032: Compilation succeeds without checking readability when --add-exports used

[jan.lahoda at oracle.com]

Changeset: d7c4c42ab260
Author:    jlahoda
Date:      2018-07-16 16:31 +0200
URL:       http://hg.openjdk.java.net/jdk/jdk11/rev/d7c4c42ab260

8207032: Compilation succeeds without checking readability when --add-exports used
Summary: Ensuring --add-exports are only propagated when the target module reads the exporting module.
Reviewed-by: vromero, jjg

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Modules.java
! test/jdk/tools/launcher/modules/addexports/AddExportsTestWarningError.java
! test/langtools/tools/javac/modules/AddExportsTest.java