hg: jdk10/sandbox/langtools: 8181622: new {@index} tag generates multiple index entries

[chris.hegarty at oracle.com]

Changeset: c5396fef969a
Author:    bpatel
Date:      2017-07-15 14:51 -0700
URL:       http://hg.openjdk.java.net/jdk10/sandbox/langtools/rev/c5396fef969a

8181622: new {@index} tag generates multiple index entries
Reviewed-by: jjg, ksrini

! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/AbstractIndexWriter.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/HtmlConfiguration.java
! test/jdk/javadoc/doclet/testModules/TestModules.java
! test/jdk/javadoc/doclet/testModules/moduleA/module-info.java
! test/jdk/javadoc/doclet/testModules/moduletags/module-info.java
! test/jdk/javadoc/doclet/testSearch/TestSearch.java