hg: jdk/sandbox: 8167314: Enable the check to detect duplicate provides in in GenModuleInfoSource

[chris.hegarty at oracle.com]

Changeset: fdd768b9865e
Author:    mchung
Date:      2018-08-22 13:47 -0500
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/fdd768b9865e

8167314: Enable the check to detect duplicate provides in in GenModuleInfoSource
Reviewed-by: lancea

! make/jdk/src/classes/build/tools/module/GenModuleInfoSource.java
! make/jdk/src/classes/build/tools/module/ModuleInfoExtraTest.java