hg: jdk8/tl/langtools: 8019308: Add descriptions of Java SE 7 and 8 language changes to SourceVersion

[joe.darcy at oracle.com]

Changeset: 065f8cb7bd89
Author:    darcy
Date:      2013-06-27 11:46 -0700
URL:       http://hg.openjdk.java.net/jdk8/tl/langtools/rev/065f8cb7bd89

8019308: Add descriptions of Java SE 7 and 8 language changes to SourceVersion
Reviewed-by: jjg

! src/share/classes/javax/lang/model/SourceVersion.java