hg: jdk9/dev/langtools: 8032587: Change silent failure in Attr.java to assertion

[eric.mccorkle at oracle.com]

Changeset: ea173b2b9f2f
Author:    emc
Date:      2014-01-24 08:47 -0500
URL:       http://hg.openjdk.java.net/jdk9/dev/langtools/rev/ea173b2b9f2f

8032587: Change silent failure in Attr.java to assertion
Summary: Change silent failure in Attr.fromAttributes into a non-null assertion
Reviewed-by: jfranck

! src/share/classes/com/sun/tools/javac/comp/Attr.java