hg: valhalla/valhalla: 8199452: [lworld] Check#checkRefType is too strict and forbids various legitimate operations on value classes

[srikanth.adayapalam at oracle.com]

Changeset: 44a050354dfc
Author:    sadayapalam
Date:      2018-03-12 15:44 +0530
URL:       http://hg.openjdk.java.net/valhalla/valhalla/rev/44a050354dfc

8199452: [lworld] Check#checkRefType is too strict and forbids various legitimate operations on value classes

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Attr.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Check.java
+ test/langtools/tools/javac/valhalla/lworld-values/ValuesAsRefs.java