hg: jdk/sandbox: 8225321: Repeated use of {@systemProperty} in a file causes duplicate ids

[chris.hegarty at oracle.com]

Changeset: fb250e9cfe67
Author:    jjg
Date:      2019-06-06 10:36 -0700
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/fb250e9cfe67

8225321: Repeated use of {@systemProperty} in a file causes duplicate ids
Reviewed-by: hannesw

! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/HtmlDocletWriter.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/TagletWriterImpl.java
! test/langtools/jdk/javadoc/doclet/testIndexTaglet/TestIndexTaglet.java
! test/langtools/jdk/javadoc/doclet/testSystemPropertyTaglet/TestSystemPropertyTaglet.java