hg: jdk/jdk: 8230337: Clarify intention of Elements.{getPackageOf, getModuleOf}

[joe.darcy at oracle.com]

Changeset: f249fc6665d5
Author:    darcy
Date:      2019-08-30 11:26 -0700
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/f249fc6665d5

8230337: Clarify intention of Elements.{getPackageOf, getModuleOf}
Reviewed-by: jjg

! src/java.compiler/share/classes/javax/lang/model/util/Elements.java
+ test/langtools/tools/javac/processing/model/util/elements/TestGetModuleOf.java
! test/langtools/tools/javac/processing/model/util/elements/TestGetPackageOf.java