hg: jdk9/sandbox/langtools: 8175317: javac does not issue unchecked warnings when checking method reference return types

[chris.hegarty at oracle.com]

Changeset: d8aeea31f9b5
Author:    mcimadamore
Date:      2017-03-08 14:21 +0000
URL:       http://hg.openjdk.java.net/jdk9/sandbox/langtools/rev/d8aeea31f9b5

8175317: javac does not issue unchecked warnings when checking method reference return types
Summary: Missing Warner object on method reference return type check
Reviewed-by: vromero

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Attr.java
+ test/tools/javac/lambda/T8175317.java
+ test/tools/javac/lambda/T8175317.out