hg: jdk/jdk10: 8187951: Update javax.lang.model.SourceVersion for "var" name

[joe.darcy at oracle.com]

Changeset: 239c7d9bb192
Author:    darcy
Date:      2018-01-08 17:32 -0800
URL:       http://hg.openjdk.java.net/jdk/jdk10/rev/239c7d9bb192

8187951: Update javax.lang.model.SourceVersion for "var" name
Reviewed-by: jjg, mcimadamore

! src/java.compiler/share/classes/javax/lang/model/SourceVersion.java
! test/langtools/tools/javac/processing/model/TestSourceVersion.java